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Finding the Third Proportional to 2,489 and 3,017

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Solution

The third proportional to 2,489 and 3,017 is: 3,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489 : 3,017 = 3,017 : x
  2. Step 2: Convert to fraction form
    2,489/3,017 = 3,017/x
  3. Step 3: Cross multiply
    2,489x = 3,017 × 3,017
  4. Step 4: Simplify right side
    2,489x = 9,102,289
  5. Step 5: Solve for x
    x = 9,102,289/2,489
  6. Step 6: Final answer
    x = 3,657.01

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.