# Photo enlarge

Mark wants to enlarge a 4-inch by 6-inch photo so that it has a height of 15inches. Use a ratio table to determine the new width of the photo.

Result

w =  10 cm

#### Solution:

$a=4 \ \\ b=6 \ \\ h=15 \ \\ w=a \cdot \ h/b=4 \cdot \ 15/6=10 \ \text{cm}$

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