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Finding the Third Proportional to 2,086.75 and 3,125

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Solution

The third proportional to 2,086.75 and 3,125 is: 4,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.75 : 3,125 = 3,125 : x
  2. Step 2: Convert to fraction form
    2,086.75/3,125 = 3,125/x
  3. Step 3: Cross multiply
    2,086.75x = 3,125 × 3,125
  4. Step 4: Simplify right side
    2,086.75x = 9,765,625
  5. Step 5: Solve for x
    x = 9,765,625/2,086.75
  6. Step 6: Final answer
    x = 4,679.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.