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Finding the Third Proportional to 163.27 and 327.38

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Solution

The third proportional to 163.27 and 327.38 is: 656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.27 : 327.38 = 327.38 : x
  2. Step 2: Convert to fraction form
    163.27/327.38 = 327.38/x
  3. Step 3: Cross multiply
    163.27x = 327.38 × 327.38
  4. Step 4: Simplify right side
    163.27x = 107,174.39
  5. Step 5: Solve for x
    x = 107,174.39/163.27
  6. Step 6: Final answer
    x = 656.44

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.