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Finding the Third Proportional to 48.49 and 67.92

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Solution

The third proportional to 48.49 and 67.92 is: 95.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.49 : 67.92 = 67.92 : x
  2. Step 2: Convert to fraction form
    48.49/67.92 = 67.92/x
  3. Step 3: Cross multiply
    48.49x = 67.92 × 67.92
  4. Step 4: Simplify right side
    48.49x = 4,613.38
  5. Step 5: Solve for x
    x = 4,613.38/48.49
  6. Step 6: Final answer
    x = 95.14

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.