A 4-inch by 7-inch image was proportionally enlarged as shown. What is the length of the unmeasured side? 4 inches 7 inches A. 11 inches C. 48 inches 12 inches B. 21 inches D. 9 inghes​

A 4inch by 7inch image was proportionally enlarged as shown What is the length of the unmeasured side 4 inches 7 inches A 11 inches C 48 inches 12 inches B 21 i class=