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Finding the Third Proportional to 8,786 and 17,122

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Solution

The third proportional to 8,786 and 17,122 is: 33,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786 : 17,122 = 17,122 : x
  2. Step 2: Convert to fraction form
    8,786/17,122 = 17,122/x
  3. Step 3: Cross multiply
    8,786x = 17,122 × 17,122
  4. Step 4: Simplify right side
    8,786x = 293,162,884
  5. Step 5: Solve for x
    x = 293,162,884/8,786
  6. Step 6: Final answer
    x = 33,367.05

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.