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Finding the Fourth Proportional to 61.62, 92.44 and 15.97

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Solution

The fourth proportional to 61.62, 92.44 and 15.97 is: 23.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.62 : 92.44 = 15.97 : x
  2. Step 2: Convert to fraction form
    61.62/92.44 = 15.97/x
  3. Step 3: Cross multiply
    61.62x = 92.44 × 15.97
  4. Step 4: Simplify right side
    61.62x = 1,476.38
  5. Step 5: Solve for x
    x = 1,476.38/61.62
  6. Step 6: Final answer
    x = 23.96

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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.