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Finding the Third Proportional to 8,289 and 17,805

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Solution

The third proportional to 8,289 and 17,805 is: 38,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289 : 17,805 = 17,805 : x
  2. Step 2: Convert to fraction form
    8,289/17,805 = 17,805/x
  3. Step 3: Cross multiply
    8,289x = 17,805 × 17,805
  4. Step 4: Simplify right side
    8,289x = 317,018,025
  5. Step 5: Solve for x
    x = 317,018,025/8,289
  6. Step 6: Final answer
    x = 38,245.63

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.