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Finding the Third Proportional to 36,405 and 79,398

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Solution

The third proportional to 36,405 and 79,398 is: 173,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405 : 79,398 = 79,398 : x
  2. Step 2: Convert to fraction form
    36,405/79,398 = 79,398/x
  3. Step 3: Cross multiply
    36,405x = 79,398 × 79,398
  4. Step 4: Simplify right side
    36,405x = 6,304,042,404
  5. Step 5: Solve for x
    x = 6,304,042,404/36,405
  6. Step 6: Final answer
    x = 173,164.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.