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Finding the Third Proportional to 6,821 and 9,393

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Solution

The third proportional to 6,821 and 9,393 is: 12,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821 : 9,393 = 9,393 : x
  2. Step 2: Convert to fraction form
    6,821/9,393 = 9,393/x
  3. Step 3: Cross multiply
    6,821x = 9,393 × 9,393
  4. Step 4: Simplify right side
    6,821x = 88,228,449
  5. Step 5: Solve for x
    x = 88,228,449/6,821
  6. Step 6: Final answer
    x = 12,934.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.