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Finding the Fourth Proportional to 24,391.71, 33,639.48 and 15,890.63

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Solution

The fourth proportional to 24,391.71, 33,639.48 and 15,890.63 is: 21,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,391.71 : 33,639.48 = 15,890.63 : x
  2. Step 2: Convert to fraction form
    24,391.71/33,639.48 = 15,890.63/x
  3. Step 3: Cross multiply
    24,391.71x = 33,639.48 × 15,890.63
  4. Step 4: Simplify right side
    24,391.71x = 534,552,361.88
  5. Step 5: Solve for x
    x = 534,552,361.88/24,391.71
  6. Step 6: Final answer
    x = 21,915.33

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