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Finding the Third Proportional to 3,491 and 7,674

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Solution

The third proportional to 3,491 and 7,674 is: 16,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491 : 7,674 = 7,674 : x
  2. Step 2: Convert to fraction form
    3,491/7,674 = 7,674/x
  3. Step 3: Cross multiply
    3,491x = 7,674 × 7,674
  4. Step 4: Simplify right side
    3,491x = 58,890,276
  5. Step 5: Solve for x
    x = 58,890,276/3,491
  6. Step 6: Final answer
    x = 16,869.17

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.