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Finding the Third Proportional to 82.94 and 112.97

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Solution

The third proportional to 82.94 and 112.97 is: 153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.94 : 112.97 = 112.97 : x
  2. Step 2: Convert to fraction form
    82.94/112.97 = 112.97/x
  3. Step 3: Cross multiply
    82.94x = 112.97 × 112.97
  4. Step 4: Simplify right side
    82.94x = 12,761.94
  5. Step 5: Solve for x
    x = 12,761.94/82.94
  6. Step 6: Final answer
    x = 153.87

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.