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Finding the Third Proportional to 17,620 and 38,192

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Solution

The third proportional to 17,620 and 38,192 is: 82,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620 : 38,192 = 38,192 : x
  2. Step 2: Convert to fraction form
    17,620/38,192 = 38,192/x
  3. Step 3: Cross multiply
    17,620x = 38,192 × 38,192
  4. Step 4: Simplify right side
    17,620x = 1,458,628,864
  5. Step 5: Solve for x
    x = 1,458,628,864/17,620
  6. Step 6: Final answer
    x = 82,782.57

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.