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Finding the Third Proportional to 38,694.50 and 84,679.75

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Solution

The third proportional to 38,694.50 and 84,679.75 is: 185,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,694.50 : 84,679.75 = 84,679.75 : x
  2. Step 2: Convert to fraction form
    38,694.50/84,679.75 = 84,679.75/x
  3. Step 3: Cross multiply
    38,694.50x = 84,679.75 × 84,679.75
  4. Step 4: Simplify right side
    38,694.50x = 7,170,660,060.06
  5. Step 5: Solve for x
    x = 7,170,660,060.06/38,694.50
  6. Step 6: Final answer
    x = 185,314.71

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.