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Finding the Third Proportional to 2,682.56 and 3,999.09

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Solution

The third proportional to 2,682.56 and 3,999.09 is: 5,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.56 : 3,999.09 = 3,999.09 : x
  2. Step 2: Convert to fraction form
    2,682.56/3,999.09 = 3,999.09/x
  3. Step 3: Cross multiply
    2,682.56x = 3,999.09 × 3,999.09
  4. Step 4: Simplify right side
    2,682.56x = 15,992,750.82
  5. Step 5: Solve for x
    x = 15,992,750.82/2,682.56
  6. Step 6: Final answer
    x = 5,961.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.