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Finding the Third Proportional to 1,568 and 2,230

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Solution

The third proportional to 1,568 and 2,230 is: 3,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568 : 2,230 = 2,230 : x
  2. Step 2: Convert to fraction form
    1,568/2,230 = 2,230/x
  3. Step 3: Cross multiply
    1,568x = 2,230 × 2,230
  4. Step 4: Simplify right side
    1,568x = 4,972,900
  5. Step 5: Solve for x
    x = 4,972,900/1,568
  6. Step 6: Final answer
    x = 3,171.49

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.