### Home > MC1 > Chapter 9 > Lesson 9.2.3 > Problem 9-78

9-78.

Remember that proportional means that there is a multiplier you can use to find one quantity when you are given the other.

What do you multiply by *x* to get *y*? Finding the multiplier should be easier with the smaller numbers.

1(?) = 3.5

2(?) = 7

In both cases you multiply by 3.5, this is true for every *x* and *y* pair.

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