Okay so first you need to fix the numbers; I put both sides into feet so the equation would look like this: 1.75/.75=x/30. now you just cross multiply and divide: (30x.75)/1.75. that means x=12.8571429... (13). from there you divide: 1.75/.75=2.3 and 30/13=2.3. that means the scale is x2.3! I hope that makes sense.
Aprox.$3.52. if you ever need to find the percentage of something you just times it by the fraction. e.g. 60% of 5 = 5x0.6. so all you need to do to figure this out is to find 60% of 5.88 which is apporxamitely 3.52
