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Finding the Third Proportional to 2,379 and 5,091

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Solution

The third proportional to 2,379 and 5,091 is: 10,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379 : 5,091 = 5,091 : x
  2. Step 2: Convert to fraction form
    2,379/5,091 = 5,091/x
  3. Step 3: Cross multiply
    2,379x = 5,091 × 5,091
  4. Step 4: Simplify right side
    2,379x = 25,918,281
  5. Step 5: Solve for x
    x = 25,918,281/2,379
  6. Step 6: Final answer
    x = 10,894.61

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.