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Finding the Fourth Proportional to 18,614.70, 25,694.27 and 11,918.36

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Solution

The fourth proportional to 18,614.70, 25,694.27 and 11,918.36 is: 16,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.70 : 25,694.27 = 11,918.36 : x
  2. Step 2: Convert to fraction form
    18,614.70/25,694.27 = 11,918.36/x
  3. Step 3: Cross multiply
    18,614.70x = 25,694.27 × 11,918.36
  4. Step 4: Simplify right side
    18,614.70x = 306,233,559.80
  5. Step 5: Solve for x
    x = 306,233,559.80/18,614.70
  6. Step 6: Final answer
    x = 16,451.17

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