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Finding the Third Proportional to 5,631 and 6,238.50

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Solution

The third proportional to 5,631 and 6,238.50 is: 6,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631 : 6,238.50 = 6,238.50 : x
  2. Step 2: Convert to fraction form
    5,631/6,238.50 = 6,238.50/x
  3. Step 3: Cross multiply
    5,631x = 6,238.50 × 6,238.50
  4. Step 4: Simplify right side
    5,631x = 38,918,882.25
  5. Step 5: Solve for x
    x = 38,918,882.25/5,631
  6. Step 6: Final answer
    x = 6,911.54

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.