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Finding the Fourth Proportional to 12,354.40, 18,531.60 and 9,073.90

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Solution

The fourth proportional to 12,354.40, 18,531.60 and 9,073.90 is: 13,610.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.40 : 18,531.60 = 9,073.90 : x
  2. Step 2: Convert to fraction form
    12,354.40/18,531.60 = 9,073.90/x
  3. Step 3: Cross multiply
    12,354.40x = 18,531.60 × 9,073.90
  4. Step 4: Simplify right side
    12,354.40x = 168,153,885.24
  5. Step 5: Solve for x
    x = 168,153,885.24/12,354.40
  6. Step 6: Final answer
    x = 13,610.85

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