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Finding the Fourth Proportional to 62.29, 85.96 and 34.66

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Solution

The fourth proportional to 62.29, 85.96 and 34.66 is: 47.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.29 : 85.96 = 34.66 : x
  2. Step 2: Convert to fraction form
    62.29/85.96 = 34.66/x
  3. Step 3: Cross multiply
    62.29x = 85.96 × 34.66
  4. Step 4: Simplify right side
    62.29x = 2,979.01
  5. Step 5: Solve for x
    x = 2,979.01/62.29
  6. Step 6: Final answer
    x = 47.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.