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Finding the Third Proportional to 132.47 and 171.84

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Solution

The third proportional to 132.47 and 171.84 is: 222.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.47 : 171.84 = 171.84 : x
  2. Step 2: Convert to fraction form
    132.47/171.84 = 171.84/x
  3. Step 3: Cross multiply
    132.47x = 171.84 × 171.84
  4. Step 4: Simplify right side
    132.47x = 29,530.27
  5. Step 5: Solve for x
    x = 29,530.27/132.47
  6. Step 6: Final answer
    x = 222.92

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.