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Finding the Third Proportional to 1,731.38 and 2,708.44

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Solution

The third proportional to 1,731.38 and 2,708.44 is: 4,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.38 : 2,708.44 = 2,708.44 : x
  2. Step 2: Convert to fraction form
    1,731.38/2,708.44 = 2,708.44/x
  3. Step 3: Cross multiply
    1,731.38x = 2,708.44 × 2,708.44
  4. Step 4: Simplify right side
    1,731.38x = 7,335,633.69
  5. Step 5: Solve for x
    x = 7,335,633.69/1,731.38
  6. Step 6: Final answer
    x = 4,236.88

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.