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Finding the Third Proportional to 2,819 and 6,115

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Solution

The third proportional to 2,819 and 6,115 is: 13,264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819 : 6,115 = 6,115 : x
  2. Step 2: Convert to fraction form
    2,819/6,115 = 6,115/x
  3. Step 3: Cross multiply
    2,819x = 6,115 × 6,115
  4. Step 4: Simplify right side
    2,819x = 37,393,225
  5. Step 5: Solve for x
    x = 37,393,225/2,819
  6. Step 6: Final answer
    x = 13,264.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.