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Finding the Third Proportional to 2,774 and 3,819

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Solution

The third proportional to 2,774 and 3,819 is: 5,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774 : 3,819 = 3,819 : x
  2. Step 2: Convert to fraction form
    2,774/3,819 = 3,819/x
  3. Step 3: Cross multiply
    2,774x = 3,819 × 3,819
  4. Step 4: Simplify right side
    2,774x = 14,584,761
  5. Step 5: Solve for x
    x = 14,584,761/2,774
  6. Step 6: Final answer
    x = 5,257.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.