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Finding the Third Proportional to 1,668 and 3,671

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Solution

The third proportional to 1,668 and 3,671 is: 8,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668 : 3,671 = 3,671 : x
  2. Step 2: Convert to fraction form
    1,668/3,671 = 3,671/x
  3. Step 3: Cross multiply
    1,668x = 3,671 × 3,671
  4. Step 4: Simplify right side
    1,668x = 13,476,241
  5. Step 5: Solve for x
    x = 13,476,241/1,668
  6. Step 6: Final answer
    x = 8,079.28

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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.