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Finding the Fourth Proportional to 62, 92.91 and 34.91

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Solution

The fourth proportional to 62, 92.91 and 34.91 is: 52.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62 : 92.91 = 34.91 : x
  2. Step 2: Convert to fraction form
    62/92.91 = 34.91/x
  3. Step 3: Cross multiply
    62x = 92.91 × 34.91
  4. Step 4: Simplify right side
    62x = 3,243.49
  5. Step 5: Solve for x
    x = 3,243.49/62
  6. Step 6: Final answer
    x = 52.31

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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.