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Finding the Third Proportional to 2,727.42 and 4,170.43

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Solution

The third proportional to 2,727.42 and 4,170.43 is: 6,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.42 : 4,170.43 = 4,170.43 : x
  2. Step 2: Convert to fraction form
    2,727.42/4,170.43 = 4,170.43/x
  3. Step 3: Cross multiply
    2,727.42x = 4,170.43 × 4,170.43
  4. Step 4: Simplify right side
    2,727.42x = 17,392,504.14
  5. Step 5: Solve for x
    x = 17,392,504.14/2,727.42
  6. Step 6: Final answer
    x = 6,376.90

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.