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Finding the Fourth Proportional to 12,442.56, 18,572.80 and 10,966.40

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Solution

The fourth proportional to 12,442.56, 18,572.80 and 10,966.40 is: 16,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.56 : 18,572.80 = 10,966.40 : x
  2. Step 2: Convert to fraction form
    12,442.56/18,572.80 = 10,966.40/x
  3. Step 3: Cross multiply
    12,442.56x = 18,572.80 × 10,966.40
  4. Step 4: Simplify right side
    12,442.56x = 203,676,753.92
  5. Step 5: Solve for x
    x = 203,676,753.92/12,442.56
  6. Step 6: Final answer
    x = 16,369.36

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