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Finding the Third Proportional to 39,443 and 84,900

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Solution

The third proportional to 39,443 and 84,900 is: 182,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443 : 84,900 = 84,900 : x
  2. Step 2: Convert to fraction form
    39,443/84,900 = 84,900/x
  3. Step 3: Cross multiply
    39,443x = 84,900 × 84,900
  4. Step 4: Simplify right side
    39,443x = 7,208,010,000
  5. Step 5: Solve for x
    x = 7,208,010,000/39,443
  6. Step 6: Final answer
    x = 182,744.97

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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.