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Finding the Fourth Proportional to 15,900.79, 23,814.28 and 13,932.49

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Solution

The fourth proportional to 15,900.79, 23,814.28 and 13,932.49 is: 20,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.79 : 23,814.28 = 13,932.49 : x
  2. Step 2: Convert to fraction form
    15,900.79/23,814.28 = 13,932.49/x
  3. Step 3: Cross multiply
    15,900.79x = 23,814.28 × 13,932.49
  4. Step 4: Simplify right side
    15,900.79x = 331,792,217.96
  5. Step 5: Solve for x
    x = 331,792,217.96/15,900.79
  6. Step 6: Final answer
    x = 20,866.40

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