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Finding the Fourth Proportional to 18,044.64, 27,061.92 and 5,565.60

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Solution

The fourth proportional to 18,044.64, 27,061.92 and 5,565.60 is: 8,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,044.64 : 27,061.92 = 5,565.60 : x
  2. Step 2: Convert to fraction form
    18,044.64/27,061.92 = 5,565.60/x
  3. Step 3: Cross multiply
    18,044.64x = 27,061.92 × 5,565.60
  4. Step 4: Simplify right side
    18,044.64x = 150,615,821.95
  5. Step 5: Solve for x
    x = 150,615,821.95/18,044.64
  6. Step 6: Final answer
    x = 8,346.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.