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Finding the Fourth Proportional to 66,374.20, 99,561.30 and 24,815.80

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Solution

The fourth proportional to 66,374.20, 99,561.30 and 24,815.80 is: 37,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,374.20 : 99,561.30 = 24,815.80 : x
  2. Step 2: Convert to fraction form
    66,374.20/99,561.30 = 24,815.80/x
  3. Step 3: Cross multiply
    66,374.20x = 99,561.30 × 24,815.80
  4. Step 4: Simplify right side
    66,374.20x = 2,470,693,308.54
  5. Step 5: Solve for x
    x = 2,470,693,308.54/66,374.20
  6. Step 6: Final answer
    x = 37,223.70

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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.