This math topic focuses on advanced ratios and calculations involving decimals, specifically by determining equivalent ratios. The problems involve applying these concepts to real-world scenarios, such as adjusting ingredient amounts in recipes or proportions like in chocolate to strawberry ratios in sundaes or mustard to ketchup in sauces. The levels of complexity increase by incorporating non-integer multiples, requiring careful decimal calculations to find the correct proportions given varying quantities. This topic is part of a broader unit on rates and ratios aimed at enhancing practical and analytical skills in handling proportions and scaling.