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Finding the Third Proportional to 741 and 1,812

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Solution

The third proportional to 741 and 1,812 is: 4,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    741 : 1,812 = 1,812 : x
  2. Step 2: Convert to fraction form
    741/1,812 = 1,812/x
  3. Step 3: Cross multiply
    741x = 1,812 × 1,812
  4. Step 4: Simplify right side
    741x = 3,283,344
  5. Step 5: Solve for x
    x = 3,283,344/741
  6. Step 6: Final answer
    x = 4,430.96

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.