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Finding the Third Proportional to 1,245 and 2,733

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Solution

The third proportional to 1,245 and 2,733 is: 5,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245 : 2,733 = 2,733 : x
  2. Step 2: Convert to fraction form
    1,245/2,733 = 2,733/x
  3. Step 3: Cross multiply
    1,245x = 2,733 × 2,733
  4. Step 4: Simplify right side
    1,245x = 7,469,289
  5. Step 5: Solve for x
    x = 7,469,289/1,245
  6. Step 6: Final answer
    x = 5,999.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.