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Finding the Fourth Proportional to 16,391.20, 24,554.40 and 8,982.40

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Solution

The fourth proportional to 16,391.20, 24,554.40 and 8,982.40 is: 13,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.20 : 24,554.40 = 8,982.40 : x
  2. Step 2: Convert to fraction form
    16,391.20/24,554.40 = 8,982.40/x
  3. Step 3: Cross multiply
    16,391.20x = 24,554.40 × 8,982.40
  4. Step 4: Simplify right side
    16,391.20x = 220,557,442.56
  5. Step 5: Solve for x
    x = 220,557,442.56/16,391.20
  6. Step 6: Final answer
    x = 13,455.84

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