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Finding the Third Proportional to 939.25 and 2,057.75

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Solution

The third proportional to 939.25 and 2,057.75 is: 4,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    939.25 : 2,057.75 = 2,057.75 : x
  2. Step 2: Convert to fraction form
    939.25/2,057.75 = 2,057.75/x
  3. Step 3: Cross multiply
    939.25x = 2,057.75 × 2,057.75
  4. Step 4: Simplify right side
    939.25x = 4,234,335.06
  5. Step 5: Solve for x
    x = 4,234,335.06/939.25
  6. Step 6: Final answer
    x = 4,508.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.