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Finding the Third Proportional to 4,517 and 9,775

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Solution

The third proportional to 4,517 and 9,775 is: 21,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,517 : 9,775 = 9,775 : x
  2. Step 2: Convert to fraction form
    4,517/9,775 = 9,775/x
  3. Step 3: Cross multiply
    4,517x = 9,775 × 9,775
  4. Step 4: Simplify right side
    4,517x = 95,550,625
  5. Step 5: Solve for x
    x = 95,550,625/4,517
  6. Step 6: Final answer
    x = 21,153.56

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.