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Finding the Third Proportional to 3,321 and 3,744

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Solution

The third proportional to 3,321 and 3,744 is: 4,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321 : 3,744 = 3,744 : x
  2. Step 2: Convert to fraction form
    3,321/3,744 = 3,744/x
  3. Step 3: Cross multiply
    3,321x = 3,744 × 3,744
  4. Step 4: Simplify right side
    3,321x = 14,017,536
  5. Step 5: Solve for x
    x = 14,017,536/3,321
  6. Step 6: Final answer
    x = 4,220.88

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.