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Finding the Third Proportional to 3,668 and 4,872

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Solution

The third proportional to 3,668 and 4,872 is: 6,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668 : 4,872 = 4,872 : x
  2. Step 2: Convert to fraction form
    3,668/4,872 = 4,872/x
  3. Step 3: Cross multiply
    3,668x = 4,872 × 4,872
  4. Step 4: Simplify right side
    3,668x = 23,736,384
  5. Step 5: Solve for x
    x = 23,736,384/3,668
  6. Step 6: Final answer
    x = 6,471.21

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.