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Finding the Third Proportional to 866.25 and 1,876.75

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Solution

The third proportional to 866.25 and 1,876.75 is: 4,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.25 : 1,876.75 = 1,876.75 : x
  2. Step 2: Convert to fraction form
    866.25/1,876.75 = 1,876.75/x
  3. Step 3: Cross multiply
    866.25x = 1,876.75 × 1,876.75
  4. Step 4: Simplify right side
    866.25x = 3,522,190.56
  5. Step 5: Solve for x
    x = 3,522,190.56/866.25
  6. Step 6: Final answer
    x = 4,066.02

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.