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Finding the Fourth Proportional to 60,644.85, 90,963 and 22,686.87

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Solution

The fourth proportional to 60,644.85, 90,963 and 22,686.87 is: 34,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,644.85 : 90,963 = 22,686.87 : x
  2. Step 2: Convert to fraction form
    60,644.85/90,963 = 22,686.87/x
  3. Step 3: Cross multiply
    60,644.85x = 90,963 × 22,686.87
  4. Step 4: Simplify right side
    60,644.85x = 2,063,665,755.81
  5. Step 5: Solve for x
    x = 2,063,665,755.81/60,644.85
  6. Step 6: Final answer
    x = 34,028.71

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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.