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Finding the Fourth Proportional to 18,044.46, 24,901.20 and 9,978.12

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Solution

The fourth proportional to 18,044.46, 24,901.20 and 9,978.12 is: 13,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,044.46 : 24,901.20 = 9,978.12 : x
  2. Step 2: Convert to fraction form
    18,044.46/24,901.20 = 9,978.12/x
  3. Step 3: Cross multiply
    18,044.46x = 24,901.20 × 9,978.12
  4. Step 4: Simplify right side
    18,044.46x = 248,467,161.74
  5. Step 5: Solve for x
    x = 248,467,161.74/18,044.46
  6. Step 6: Final answer
    x = 13,769.72

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.