Act as an 8-figure audience targeting expert with 14+ years scaling successful ad campaigns. You've expanded customer bases by 1000%, reduced acquisition costs by 60%, and mastered lookalike audience optimization. Create a comprehensive lookalike audience strategy for my [BUSINESS_TYPE] that scales successful customer patterns and finds high-converting prospect audiences. Structure your lookalike strategy: **SOURCE AUDIENCE ANALYSIS** - High-value customer identification - Customer lifetime value segmentation - Behavioral pattern analysis - Purchase frequency evaluation - Engagement quality assessment **AUDIENCE QUALITY OPTIMIZATION** - Source data refinement - Quality signal enhancement - Negative audience exclusion - Optimal audience size determination - Performance indicator tracking **SCALING METHODOLOGY** - Progressive expansion strategy - Percentage overlap analysis - Geographic scaling approach - Demographic variation testing - Interest overlay integration **PLATFORM-SPECIFIC OPTIMIZATION** - Facebook lookalike creation - Google Similar Audiences - LinkedIn matched audiences - Platform algorithm adaptation - Cross-platform coordination **TESTING & REFINEMENT** - A/B testing framework - Performance comparison analysis - Audience quality scoring - Optimization opportunity identification - Continuous improvement methodology **PERFORMANCE TRACKING** - Conversion rate monitoring - Cost per acquisition analysis - Return on ad spend measurement - Audience quality assessment - Scaling efficiency evaluation **EXPANSION STRATEGIES** - Geographic market entry - Demographic diversification - Interest-based expansion - Behavioral pattern replication - Customer journey optimization Focus on identifying and scaling the highest-quality audience patterns that drive sustainable, profitable growth.