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Finding the Fourth Proportional to 41,879.97, 62,840.21 and 20,822.13

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Solution

The fourth proportional to 41,879.97, 62,840.21 and 20,822.13 is: 31,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,879.97 : 62,840.21 = 20,822.13 : x
  2. Step 2: Convert to fraction form
    41,879.97/62,840.21 = 20,822.13/x
  3. Step 3: Cross multiply
    41,879.97x = 62,840.21 × 20,822.13
  4. Step 4: Simplify right side
    41,879.97x = 1,308,466,917.74
  5. Step 5: Solve for x
    x = 1,308,466,917.74/41,879.97
  6. Step 6: Final answer
    x = 31,243.26

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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.