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Finding the Fourth Proportional to 55,792.62, 76,972.03 and 31,906.53

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Solution

The fourth proportional to 55,792.62, 76,972.03 and 31,906.53 is: 44,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,792.62 : 76,972.03 = 31,906.53 : x
  2. Step 2: Convert to fraction form
    55,792.62/76,972.03 = 31,906.53/x
  3. Step 3: Cross multiply
    55,792.62x = 76,972.03 × 31,906.53
  4. Step 4: Simplify right side
    55,792.62x = 2,455,910,304.59
  5. Step 5: Solve for x
    x = 2,455,910,304.59/55,792.62
  6. Step 6: Final answer
    x = 44,018.55

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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.