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Finding the Third Proportional to 38,668.88 and 81,914.25

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Solution

The third proportional to 38,668.88 and 81,914.25 is: 173,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668.88 : 81,914.25 = 81,914.25 : x
  2. Step 2: Convert to fraction form
    38,668.88/81,914.25 = 81,914.25/x
  3. Step 3: Cross multiply
    38,668.88x = 81,914.25 × 81,914.25
  4. Step 4: Simplify right side
    38,668.88x = 6,709,944,353.06
  5. Step 5: Solve for x
    x = 6,709,944,353.06/38,668.88
  6. Step 6: Final answer
    x = 173,523.13

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.