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Finding the Third Proportional to 3,408 and 7,344

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Solution

The third proportional to 3,408 and 7,344 is: 15,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408 : 7,344 = 7,344 : x
  2. Step 2: Convert to fraction form
    3,408/7,344 = 7,344/x
  3. Step 3: Cross multiply
    3,408x = 7,344 × 7,344
  4. Step 4: Simplify right side
    3,408x = 53,934,336
  5. Step 5: Solve for x
    x = 53,934,336/3,408
  6. Step 6: Final answer
    x = 15,825.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.