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Finding the Third Proportional to 5,662 and 7,863

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Solution

The third proportional to 5,662 and 7,863 is: 10,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662 : 7,863 = 7,863 : x
  2. Step 2: Convert to fraction form
    5,662/7,863 = 7,863/x
  3. Step 3: Cross multiply
    5,662x = 7,863 × 7,863
  4. Step 4: Simplify right side
    5,662x = 61,826,769
  5. Step 5: Solve for x
    x = 61,826,769/5,662
  6. Step 6: Final answer
    x = 10,919.60

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.