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Finding the Fourth Proportional to 24,519.80, 36,761.70 and 9,721.40

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Solution

The fourth proportional to 24,519.80, 36,761.70 and 9,721.40 is: 14,574.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,519.80 : 36,761.70 = 9,721.40 : x
  2. Step 2: Convert to fraction form
    24,519.80/36,761.70 = 9,721.40/x
  3. Step 3: Cross multiply
    24,519.80x = 36,761.70 × 9,721.40
  4. Step 4: Simplify right side
    24,519.80x = 357,375,190.38
  5. Step 5: Solve for x
    x = 357,375,190.38/24,519.80
  6. Step 6: Final answer
    x = 14,574.96

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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.