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Finding the Fourth Proportional to 67.92, 93.68 and 44.62

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Solution

The fourth proportional to 67.92, 93.68 and 44.62 is: 61.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.92 : 93.68 = 44.62 : x
  2. Step 2: Convert to fraction form
    67.92/93.68 = 44.62/x
  3. Step 3: Cross multiply
    67.92x = 93.68 × 44.62
  4. Step 4: Simplify right side
    67.92x = 4,179.31
  5. Step 5: Solve for x
    x = 4,179.31/67.92
  6. Step 6: Final answer
    x = 61.53

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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.