what denminator for 21/3=49/_ would make these ratios proportional?

1 answer

To make the ratios proportional, we can set up a proportion:

21/3 = 49/x

Now, we can solve for x by cross-multiplying:

21x = 3 * 49

Simplifying the right side:

21x = 147

Dividing both sides by 21:

x = 147 / 21

Simplifying the fraction:

x = 7

So, the denominator that would make the ratios proportional is 7.