I have 3 numbers: 57, 5, 68. I know that 68 is 52% of the total. Is there an equation that I can use that will calculate what number 68 would become if I want it to be 65% of the total?

Question

I have 3 numbers:  57, 5, 68.  I know that 68 is 52% of the total.  Is there an equation that I can use that will calculate what number 68 would become if I want it to be 65% of the total?

owlfred · Answer

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anonymous · Answer

x/(57+5+x)=.65