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Finding the Third Proportional to 4,867 and 9,863

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Solution

The third proportional to 4,867 and 9,863 is: 19,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,867 : 9,863 = 9,863 : x
  2. Step 2: Convert to fraction form
    4,867/9,863 = 9,863/x
  3. Step 3: Cross multiply
    4,867x = 9,863 × 9,863
  4. Step 4: Simplify right side
    4,867x = 97,278,769
  5. Step 5: Solve for x
    x = 97,278,769/4,867
  6. Step 6: Final answer
    x = 19,987.42

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.