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Finding the Fourth Proportional to 61.92, 92.76 and 34.92

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Solution

The fourth proportional to 61.92, 92.76 and 34.92 is: 52.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.92 : 92.76 = 34.92 : x
  2. Step 2: Convert to fraction form
    61.92/92.76 = 34.92/x
  3. Step 3: Cross multiply
    61.92x = 92.76 × 34.92
  4. Step 4: Simplify right side
    61.92x = 3,239.18
  5. Step 5: Solve for x
    x = 3,239.18/61.92
  6. Step 6: Final answer
    x = 52.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.