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Finding the Third Proportional to 1,328 and 3,568

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Solution

The third proportional to 1,328 and 3,568 is: 9,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328 : 3,568 = 3,568 : x
  2. Step 2: Convert to fraction form
    1,328/3,568 = 3,568/x
  3. Step 3: Cross multiply
    1,328x = 3,568 × 3,568
  4. Step 4: Simplify right side
    1,328x = 12,730,624
  5. Step 5: Solve for x
    x = 12,730,624/1,328
  6. Step 6: Final answer
    x = 9,586.31

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Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.