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Finding the Fourth Proportional to 12,402.32, 18,604.12 and 4,905.92

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Solution

The fourth proportional to 12,402.32, 18,604.12 and 4,905.92 is: 7,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.32 : 18,604.12 = 4,905.92 : x
  2. Step 2: Convert to fraction form
    12,402.32/18,604.12 = 4,905.92/x
  3. Step 3: Cross multiply
    12,402.32x = 18,604.12 × 4,905.92
  4. Step 4: Simplify right side
    12,402.32x = 91,270,324.39
  5. Step 5: Solve for x
    x = 91,270,324.39/12,402.32
  6. Step 6: Final answer
    x = 7,359.13

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