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Finding the Third Proportional to 67,826 and 102,891

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Solution

The third proportional to 67,826 and 102,891 is: 156,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,826 : 102,891 = 102,891 : x
  2. Step 2: Convert to fraction form
    67,826/102,891 = 102,891/x
  3. Step 3: Cross multiply
    67,826x = 102,891 × 102,891
  4. Step 4: Simplify right side
    67,826x = 10,586,557,881
  5. Step 5: Solve for x
    x = 10,586,557,881/67,826
  6. Step 6: Final answer
    x = 156,084.07

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.