3 Parts Cocoa to 1 Part Milk = ___Parts Cocoa to ___ Part Milk
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Scaling Ratios
Many real world problems involve scaling a ratio up or down to find an equivalent ration. This requires finding larger or smaller numbers with the same relationship as the numbers in the original ratio. For example, the ratio 1:2, 2:4, and 3:6 are all equivalent. Suppose a shade of green paint is made with 3 parts yellow paint mixed with 2 parts blue paint. You would get the same shade of green whether you mixed 3 gallons of yellow paint to 2 gallons of blue paint, 6 gallons of yellow paint to 4 gallons of blue paint, or 9 gallons of yellow paint to 6 gallons of blue paint.
Another example:
3 parts cocoa to 1 part milk = ___parts cocoa to ___ part milk