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Finding the Third Proportional to 3,072.75 and 4,268.25

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Solution

The third proportional to 3,072.75 and 4,268.25 is: 5,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.75 : 4,268.25 = 4,268.25 : x
  2. Step 2: Convert to fraction form
    3,072.75/4,268.25 = 4,268.25/x
  3. Step 3: Cross multiply
    3,072.75x = 4,268.25 × 4,268.25
  4. Step 4: Simplify right side
    3,072.75x = 18,217,958.06
  5. Step 5: Solve for x
    x = 18,217,958.06/3,072.75
  6. Step 6: Final answer
    x = 5,928.88

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.