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Finding the Third Proportional to 1,568 and 2,031

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Solution

The third proportional to 1,568 and 2,031 is: 2,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568 : 2,031 = 2,031 : x
  2. Step 2: Convert to fraction form
    1,568/2,031 = 2,031/x
  3. Step 3: Cross multiply
    1,568x = 2,031 × 2,031
  4. Step 4: Simplify right side
    1,568x = 4,124,961
  5. Step 5: Solve for x
    x = 4,124,961/1,568
  6. Step 6: Final answer
    x = 2,630.71

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.