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Finding the Fourth Proportional to 66,876, 92,265.22 and 38,174.95

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Solution

The fourth proportional to 66,876, 92,265.22 and 38,174.95 is: 52,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,876 : 92,265.22 = 38,174.95 : x
  2. Step 2: Convert to fraction form
    66,876/92,265.22 = 38,174.95/x
  3. Step 3: Cross multiply
    66,876x = 92,265.22 × 38,174.95
  4. Step 4: Simplify right side
    66,876x = 3,522,220,160.24
  5. Step 5: Solve for x
    x = 3,522,220,160.24/66,876
  6. Step 6: Final answer
    x = 52,667.93

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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.