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Finding the Third Proportional to 126.38 and 132

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Solution

The third proportional to 126.38 and 132 is: 137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.38 : 132 = 132 : x
  2. Step 2: Convert to fraction form
    126.38/132 = 132/x
  3. Step 3: Cross multiply
    126.38x = 132 × 132
  4. Step 4: Simplify right side
    126.38x = 17,424
  5. Step 5: Solve for x
    x = 17,424/126.38
  6. Step 6: Final answer
    x = 137.88

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Why These Related Problems?

These problems maintain the same ratio (1.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.