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Finding the Third Proportional to 38,828 and 91,722

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Solution

The third proportional to 38,828 and 91,722 is: 216,671.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,828 : 91,722 = 91,722 : x
  2. Step 2: Convert to fraction form
    38,828/91,722 = 91,722/x
  3. Step 3: Cross multiply
    38,828x = 91,722 × 91,722
  4. Step 4: Simplify right side
    38,828x = 8,412,925,284
  5. Step 5: Solve for x
    x = 8,412,925,284/38,828
  6. Step 6: Final answer
    x = 216,671.61

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.