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Finding the Fourth Proportional to 60,427, 90,575.70 and 29,193.40

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Solution

The fourth proportional to 60,427, 90,575.70 and 29,193.40 is: 43,758.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,427 : 90,575.70 = 29,193.40 : x
  2. Step 2: Convert to fraction form
    60,427/90,575.70 = 29,193.40/x
  3. Step 3: Cross multiply
    60,427x = 90,575.70 × 29,193.40
  4. Step 4: Simplify right side
    60,427x = 2,644,212,640.38
  5. Step 5: Solve for x
    x = 2,644,212,640.38/60,427
  6. Step 6: Final answer
    x = 43,758.79

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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.