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Finding the Third Proportional to 17,690 and 38,234

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Solution

The third proportional to 17,690 and 38,234 is: 82,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690 : 38,234 = 38,234 : x
  2. Step 2: Convert to fraction form
    17,690/38,234 = 38,234/x
  3. Step 3: Cross multiply
    17,690x = 38,234 × 38,234
  4. Step 4: Simplify right side
    17,690x = 1,461,838,756
  5. Step 5: Solve for x
    x = 1,461,838,756/17,690
  6. Step 6: Final answer
    x = 82,636.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.