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Finding the Third Proportional to 3,963 and 8,763

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Solution

The third proportional to 3,963 and 8,763 is: 19,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963 : 8,763 = 8,763 : x
  2. Step 2: Convert to fraction form
    3,963/8,763 = 8,763/x
  3. Step 3: Cross multiply
    3,963x = 8,763 × 8,763
  4. Step 4: Simplify right side
    3,963x = 76,790,169
  5. Step 5: Solve for x
    x = 76,790,169/3,963
  6. Step 6: Final answer
    x = 19,376.78

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.