By using the given ratio, we will see that the diagonal measures 50 inches.
First, we know that the ratio between length and width is 16:9, and the length is 43.6 inches, then the width will be:
W = (9/16)*43.6 inches = 24.5 in
Now, the diagonal will be equal to the hypotenuse of a right triangle with catheti of 43.6 in and 24.5 in, by using Pythagorean's theorem we get:
[tex]D = \sqrt{(43.6in)^2 + (24.5in)^2} = 50 in[/tex]
We conclude that the diagonal measures 50 inches.
If you want to learn more about ratios:
https://brainly.com/question/2328454
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