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Finding the Third Proportional to 568 and 1,217

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Solution

The third proportional to 568 and 1,217 is: 2,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    568 : 1,217 = 1,217 : x
  2. Step 2: Convert to fraction form
    568/1,217 = 1,217/x
  3. Step 3: Cross multiply
    568x = 1,217 × 1,217
  4. Step 4: Simplify right side
    568x = 1,481,089
  5. Step 5: Solve for x
    x = 1,481,089/568
  6. Step 6: Final answer
    x = 2,607.55

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.