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Finding the Fourth Proportional to 41,310.40, 61,879.20 and 22,820.80

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Solution

The fourth proportional to 41,310.40, 61,879.20 and 22,820.80 is: 34,183.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,310.40 : 61,879.20 = 22,820.80 : x
  2. Step 2: Convert to fraction form
    41,310.40/61,879.20 = 22,820.80/x
  3. Step 3: Cross multiply
    41,310.40x = 61,879.20 × 22,820.80
  4. Step 4: Simplify right side
    41,310.40x = 1,412,132,847.36
  5. Step 5: Solve for x
    x = 1,412,132,847.36/41,310.40
  6. Step 6: Final answer
    x = 34,183.47

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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.