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Finding the Third Proportional to 3,399 and 5,372

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Solution

The third proportional to 3,399 and 5,372 is: 8,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399 : 5,372 = 5,372 : x
  2. Step 2: Convert to fraction form
    3,399/5,372 = 5,372/x
  3. Step 3: Cross multiply
    3,399x = 5,372 × 5,372
  4. Step 4: Simplify right side
    3,399x = 28,858,384
  5. Step 5: Solve for x
    x = 28,858,384/3,399
  6. Step 6: Final answer
    x = 8,490.26

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.