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Finding the Third Proportional to 4,182 and 8,859

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Solution

The third proportional to 4,182 and 8,859 is: 18,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,182 : 8,859 = 8,859 : x
  2. Step 2: Convert to fraction form
    4,182/8,859 = 8,859/x
  3. Step 3: Cross multiply
    4,182x = 8,859 × 8,859
  4. Step 4: Simplify right side
    4,182x = 78,481,881
  5. Step 5: Solve for x
    x = 78,481,881/4,182
  6. Step 6: Final answer
    x = 18,766.59

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.