How much will the bag end up weighing?

Question

If 12 million grains weighed 36.96 ounces, how much would 25 million weigh?

Answer 1

Set up a proportion

 

36.96/12,000,000 = x/25,000,000

924,000,000/12,000,000 = x

77 = x

 

25 million weight 77 ounces.

 

Answer 2

12 million       25 million

--------------- =  --------------

36.96 oz.            x oz.

 

Cross multiply:

 

12x = 25*(36.96)

 

Solve for x.