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Finding the Third Proportional to 3,234.50 and 5,129.75

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Solution

The third proportional to 3,234.50 and 5,129.75 is: 8,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,234.50 : 5,129.75 = 5,129.75 : x
  2. Step 2: Convert to fraction form
    3,234.50/5,129.75 = 5,129.75/x
  3. Step 3: Cross multiply
    3,234.50x = 5,129.75 × 5,129.75
  4. Step 4: Simplify right side
    3,234.50x = 26,314,335.06
  5. Step 5: Solve for x
    x = 26,314,335.06/3,234.50
  6. Step 6: Final answer
    x = 8,135.52

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.