A = -599 if I read the question correctly
Width of the miniature model =
inches
Length of the miniature model =
inches
The actual width of the boat = 15 feet
Let us find the actual length of the boat.
Write it in a proportion form.
width of model : length of model : : width of actual : length of actual



Do cross multiplication.



⇒ x = 22
Hence the actual length of the boat is 22 feet.