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Finding the Third Proportional to 3,442 and 4,479

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Solution

The third proportional to 3,442 and 4,479 is: 5,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442 : 4,479 = 4,479 : x
  2. Step 2: Convert to fraction form
    3,442/4,479 = 4,479/x
  3. Step 3: Cross multiply
    3,442x = 4,479 × 4,479
  4. Step 4: Simplify right side
    3,442x = 20,061,441
  5. Step 5: Solve for x
    x = 20,061,441/3,442
  6. Step 6: Final answer
    x = 5,828.43

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.