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Finding the Third Proportional to 1,489 and 2,325

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Solution

The third proportional to 1,489 and 2,325 is: 3,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489 : 2,325 = 2,325 : x
  2. Step 2: Convert to fraction form
    1,489/2,325 = 2,325/x
  3. Step 3: Cross multiply
    1,489x = 2,325 × 2,325
  4. Step 4: Simplify right side
    1,489x = 5,405,625
  5. Step 5: Solve for x
    x = 5,405,625/1,489
  6. Step 6: Final answer
    x = 3,630.37

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.