GCSE Maths - Scaling Up and Down Using Proportions #87

The video tutorial explains how to use proportions to scale quantities up or down. It covers examples such as calculating the cost of a different number of juice bottles, determining earnings for a catwalker based on the number of cats walked, and adjusting recipe ingredients for a different number of cakes. The key idea is to first find the unit cost or quantity and then scale it to the desired amount.

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