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Finding the Third Proportional to 38,863.88 and 80,490.75

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Solution

The third proportional to 38,863.88 and 80,490.75 is: 166,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,863.88 : 80,490.75 = 80,490.75 : x
  2. Step 2: Convert to fraction form
    38,863.88/80,490.75 = 80,490.75/x
  3. Step 3: Cross multiply
    38,863.88x = 80,490.75 × 80,490.75
  4. Step 4: Simplify right side
    38,863.88x = 6,478,760,835.56
  5. Step 5: Solve for x
    x = 6,478,760,835.56/38,863.88
  6. Step 6: Final answer
    x = 166,703.93

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.