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Finding the Third Proportional to 84,568 and 126,650

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Solution

The third proportional to 84,568 and 126,650 is: 189,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,568 : 126,650 = 126,650 : x
  2. Step 2: Convert to fraction form
    84,568/126,650 = 126,650/x
  3. Step 3: Cross multiply
    84,568x = 126,650 × 126,650
  4. Step 4: Simplify right side
    84,568x = 16,040,222,500
  5. Step 5: Solve for x
    x = 16,040,222,500/84,568
  6. Step 6: Final answer
    x = 189,672.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.