Lucy needed to enlarge an image of her daughter for her birthday invitation. The ratio of length to width of the original image is 4 inches to 9 inches. If the enlarged image has to be 72 inches wide what would be the length of the image to keep it in proportion?
32 inches. Since the width was enlarged in the proportion of 8, (9x8=72) the same must be done to the length in order to keep the ratios proportionate. Therefore, 4x8= 32. 32 inches long