we are given
1:5
to get from 5 to 10, you must multiply by 2
1 x 2 = 2
5 x 2 = 10
2:10
to get from 1 to 5, you must multiply by 5
1 x 5 = 5
5 x 5 = 25
5:25
to get from 5 to 50, you must multiply by 10
1 x 10 = 10
5 x 10 = 50
10:50
hope this helped
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