This document discusses compound proportions, which involve relating two or more quantities. It provides four rules for solving compound proportions based on whether the quantities are directly or inversely related. It then gives eight examples showing how to set up and solve compound proportion word problems involving rates like production, wages, distance, and time. The examples calculate unknown values like number of items, amount of wages, distance or time taken by relating the given and unknown quantities using the appropriate rule for direct or inverse relationships.