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Finding the Third Proportional to 8,891 and 19,393

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Solution

The third proportional to 8,891 and 19,393 is: 42,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891 : 19,393 = 19,393 : x
  2. Step 2: Convert to fraction form
    8,891/19,393 = 19,393/x
  3. Step 3: Cross multiply
    8,891x = 19,393 × 19,393
  4. Step 4: Simplify right side
    8,891x = 376,088,449
  5. Step 5: Solve for x
    x = 376,088,449/8,891
  6. Step 6: Final answer
    x = 42,299.90

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.