The path of a rotating lawnmower blade has a diameter of 24 inches and a circumference of about 75 inches. on a smaller model of the lawnmower, the blade has a circumference of about 12.5 inches. what is the diameter of the model? 1. pick a proportion 2. substitute the given values 3. find the factor 4. solve for the missing part ( solve and tell me each question/number and tell me it like 1.(answer) 2.(answer) and so on and so on)