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Finding the Fourth Proportional to 16,787.34, 25,148.16 and 12,872.61

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Solution

The fourth proportional to 16,787.34, 25,148.16 and 12,872.61 is: 19,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.34 : 25,148.16 = 12,872.61 : x
  2. Step 2: Convert to fraction form
    16,787.34/25,148.16 = 12,872.61/x
  3. Step 3: Cross multiply
    16,787.34x = 25,148.16 × 12,872.61
  4. Step 4: Simplify right side
    16,787.34x = 323,722,455.90
  5. Step 5: Solve for x
    x = 323,722,455.90/16,787.34
  6. Step 6: Final answer
    x = 19,283.73

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