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Finding the Third Proportional to 2,112 and 3,774

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Solution

The third proportional to 2,112 and 3,774 is: 6,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112 : 3,774 = 3,774 : x
  2. Step 2: Convert to fraction form
    2,112/3,774 = 3,774/x
  3. Step 3: Cross multiply
    2,112x = 3,774 × 3,774
  4. Step 4: Simplify right side
    2,112x = 14,243,076
  5. Step 5: Solve for x
    x = 14,243,076/2,112
  6. Step 6: Final answer
    x = 6,743.88

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.