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Finding the Third Proportional to 33,890 and 69,832

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Solution

The third proportional to 33,890 and 69,832 is: 143,892.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,890 : 69,832 = 69,832 : x
  2. Step 2: Convert to fraction form
    33,890/69,832 = 69,832/x
  3. Step 3: Cross multiply
    33,890x = 69,832 × 69,832
  4. Step 4: Simplify right side
    33,890x = 4,876,508,224
  5. Step 5: Solve for x
    x = 4,876,508,224/33,890
  6. Step 6: Final answer
    x = 143,892.25

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.