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Finding the Third Proportional to 2,618 and 4,049

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Solution

The third proportional to 2,618 and 4,049 is: 6,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618 : 4,049 = 4,049 : x
  2. Step 2: Convert to fraction form
    2,618/4,049 = 4,049/x
  3. Step 3: Cross multiply
    2,618x = 4,049 × 4,049
  4. Step 4: Simplify right side
    2,618x = 16,394,401
  5. Step 5: Solve for x
    x = 16,394,401/2,618
  6. Step 6: Final answer
    x = 6,262.19

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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.