The fourth proportional to the numbers is ____.

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Detailed Solution

The fourth proportional to the numbers 2.8, 14, 3.5 is 17.5.
The given proportional numbers are 2.8, 14, 3.5.
To find the fourth proportion of the numbers, apply the condition for proportionality,

a \times d = b \times c

Substitute the known values within the formula,

2.8 \times d = 3.5 \times 14

d = \frac{3.5 \times 14}{2.8}

By solving the above equation,

d = \frac{49}{2.8}

d = 17.5
The fourth proportional is

.
Hence, the required answer is 17.5.

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