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Finding the Third Proportional to 2,189.25 and 2,922.75

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Solution

The third proportional to 2,189.25 and 2,922.75 is: 3,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.25 : 2,922.75 = 2,922.75 : x
  2. Step 2: Convert to fraction form
    2,189.25/2,922.75 = 2,922.75/x
  3. Step 3: Cross multiply
    2,189.25x = 2,922.75 × 2,922.75
  4. Step 4: Simplify right side
    2,189.25x = 8,542,467.56
  5. Step 5: Solve for x
    x = 8,542,467.56/2,189.25
  6. Step 6: Final answer
    x = 3,902.01

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.