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Finding the Third Proportional to 2,489 and 5,875

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Solution

The third proportional to 2,489 and 5,875 is: 13,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489 : 5,875 = 5,875 : x
  2. Step 2: Convert to fraction form
    2,489/5,875 = 5,875/x
  3. Step 3: Cross multiply
    2,489x = 5,875 × 5,875
  4. Step 4: Simplify right side
    2,489x = 34,515,625
  5. Step 5: Solve for x
    x = 34,515,625/2,489
  6. Step 6: Final answer
    x = 13,867.27

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.