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Finding the Fourth Proportional to 41,370.60, 61,982.70 and 40,000.20

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Solution

The fourth proportional to 41,370.60, 61,982.70 and 40,000.20 is: 59,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,370.60 : 61,982.70 = 40,000.20 : x
  2. Step 2: Convert to fraction form
    41,370.60/61,982.70 = 40,000.20/x
  3. Step 3: Cross multiply
    41,370.60x = 61,982.70 × 40,000.20
  4. Step 4: Simplify right side
    41,370.60x = 2,479,320,396.54
  5. Step 5: Solve for x
    x = 2,479,320,396.54/41,370.60
  6. Step 6: Final answer
    x = 59,929.52

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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.