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Finding the Third Proportional to 202.25 and 410.13

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Solution

The third proportional to 202.25 and 410.13 is: 831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.25 : 410.13 = 410.13 : x
  2. Step 2: Convert to fraction form
    202.25/410.13 = 410.13/x
  3. Step 3: Cross multiply
    202.25x = 410.13 × 410.13
  4. Step 4: Simplify right side
    202.25x = 168,202.52
  5. Step 5: Solve for x
    x = 168,202.52/202.25
  6. Step 6: Final answer
    x = 831.66

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.