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Finding the Third Proportional to 201.13 and 326.38

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Solution

The third proportional to 201.13 and 326.38 is: 529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.13 : 326.38 = 326.38 : x
  2. Step 2: Convert to fraction form
    201.13/326.38 = 326.38/x
  3. Step 3: Cross multiply
    201.13x = 326.38 × 326.38
  4. Step 4: Simplify right side
    201.13x = 106,520.64
  5. Step 5: Solve for x
    x = 106,520.64/201.13
  6. Step 6: Final answer
    x = 529.62

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.