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Finding the Fourth Proportional to 57,389.43, 86,089.11 and 15,836.43

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Solution

The fourth proportional to 57,389.43, 86,089.11 and 15,836.43 is: 23,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,389.43 : 86,089.11 = 15,836.43 : x
  2. Step 2: Convert to fraction form
    57,389.43/86,089.11 = 15,836.43/x
  3. Step 3: Cross multiply
    57,389.43x = 86,089.11 × 15,836.43
  4. Step 4: Simplify right side
    57,389.43x = 1,363,344,164.28
  5. Step 5: Solve for x
    x = 1,363,344,164.28/57,389.43
  6. Step 6: Final answer
    x = 23,756.02

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