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Finding the Fourth Proportional to 97.92, 146.82 and 46.57

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Solution

The fourth proportional to 97.92, 146.82 and 46.57 is: 69.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.92 : 146.82 = 46.57 : x
  2. Step 2: Convert to fraction form
    97.92/146.82 = 46.57/x
  3. Step 3: Cross multiply
    97.92x = 146.82 × 46.57
  4. Step 4: Simplify right side
    97.92x = 6,837.41
  5. Step 5: Solve for x
    x = 6,837.41/97.92
  6. Step 6: Final answer
    x = 69.83

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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.