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Finding the Fourth Proportional to 61.92, 92.58 and 44.73

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Solution

The fourth proportional to 61.92, 92.58 and 44.73 is: 66.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.92 : 92.58 = 44.73 : x
  2. Step 2: Convert to fraction form
    61.92/92.58 = 44.73/x
  3. Step 3: Cross multiply
    61.92x = 92.58 × 44.73
  4. Step 4: Simplify right side
    61.92x = 4,141.10
  5. Step 5: Solve for x
    x = 4,141.10/61.92
  6. Step 6: Final answer
    x = 66.88

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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.