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Finding the Third Proportional to 50,717 and 78,843

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Solution

The third proportional to 50,717 and 78,843 is: 122,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,717 : 78,843 = 78,843 : x
  2. Step 2: Convert to fraction form
    50,717/78,843 = 78,843/x
  3. Step 3: Cross multiply
    50,717x = 78,843 × 78,843
  4. Step 4: Simplify right side
    50,717x = 6,216,218,649
  5. Step 5: Solve for x
    x = 6,216,218,649/50,717
  6. Step 6: Final answer
    x = 122,566.77

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.