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Finding the Fourth Proportional to 61,906.62, 85,451.46 and 36,411.87

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Solution

The fourth proportional to 61,906.62, 85,451.46 and 36,411.87 is: 50,260.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,906.62 : 85,451.46 = 36,411.87 : x
  2. Step 2: Convert to fraction form
    61,906.62/85,451.46 = 36,411.87/x
  3. Step 3: Cross multiply
    61,906.62x = 85,451.46 × 36,411.87
  4. Step 4: Simplify right side
    61,906.62x = 3,111,447,452.83
  5. Step 5: Solve for x
    x = 3,111,447,452.83/61,906.62
  6. Step 6: Final answer
    x = 50,260.33

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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.