350feet
Given the original height of the tower to be 14 inches tall.
If the scale on the drawing is 1:25 (inches: feet), this shows that:
[tex]1in=25ft[/tex]Next is to convert 14 inches to feet.
[tex]14in=x[/tex]Take the ratios of both expressions:
[tex]\begin{gathered} \frac{1\cancel{in}}{14\cancel{in}}=\frac{25ft}{x} \\ x=14\times25ft \\ x=350ft \end{gathered}[/tex]Hence the real height of the tower is 350feet