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Finding the Fourth Proportional to 62,648.10, 86,456.70 and 35,793.90

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Solution

The fourth proportional to 62,648.10, 86,456.70 and 35,793.90 is: 49,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,648.10 : 86,456.70 = 35,793.90 : x
  2. Step 2: Convert to fraction form
    62,648.10/86,456.70 = 35,793.90/x
  3. Step 3: Cross multiply
    62,648.10x = 86,456.70 × 35,793.90
  4. Step 4: Simplify right side
    62,648.10x = 3,094,622,474.13
  5. Step 5: Solve for x
    x = 3,094,622,474.13/62,648.10
  6. Step 6: Final answer
    x = 49,396.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.