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Finding the Third Proportional to 7,879 and 14,015

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Solution

The third proportional to 7,879 and 14,015 is: 24,929.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879 : 14,015 = 14,015 : x
  2. Step 2: Convert to fraction form
    7,879/14,015 = 14,015/x
  3. Step 3: Cross multiply
    7,879x = 14,015 × 14,015
  4. Step 4: Simplify right side
    7,879x = 196,420,225
  5. Step 5: Solve for x
    x = 196,420,225/7,879
  6. Step 6: Final answer
    x = 24,929.59

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.