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Finding the Fourth Proportional to 62.17, 93.26 and 31.73

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Solution

The fourth proportional to 62.17, 93.26 and 31.73 is: 47.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.17 : 93.26 = 31.73 : x
  2. Step 2: Convert to fraction form
    62.17/93.26 = 31.73/x
  3. Step 3: Cross multiply
    62.17x = 93.26 × 31.73
  4. Step 4: Simplify right side
    62.17x = 2,958.75
  5. Step 5: Solve for x
    x = 2,958.75/62.17
  6. Step 6: Final answer
    x = 47.59

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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.