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Finding the Third Proportional to 8,857 and 13,266

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Solution

The third proportional to 8,857 and 13,266 is: 19,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857 : 13,266 = 13,266 : x
  2. Step 2: Convert to fraction form
    8,857/13,266 = 13,266/x
  3. Step 3: Cross multiply
    8,857x = 13,266 × 13,266
  4. Step 4: Simplify right side
    8,857x = 175,986,756
  5. Step 5: Solve for x
    x = 175,986,756/8,857
  6. Step 6: Final answer
    x = 19,869.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.