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Finding the Third Proportional to 567 and 616.50

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Solution

The third proportional to 567 and 616.50 is: 670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    567 : 616.50 = 616.50 : x
  2. Step 2: Convert to fraction form
    567/616.50 = 616.50/x
  3. Step 3: Cross multiply
    567x = 616.50 × 616.50
  4. Step 4: Simplify right side
    567x = 380,072.25
  5. Step 5: Solve for x
    x = 380,072.25/567
  6. Step 6: Final answer
    x = 670.32

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.