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Finding the Third Proportional to 5,474.25 and 8,211.38

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Solution

The third proportional to 5,474.25 and 8,211.38 is: 12,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.25 : 8,211.38 = 8,211.38 : x
  2. Step 2: Convert to fraction form
    5,474.25/8,211.38 = 8,211.38/x
  3. Step 3: Cross multiply
    5,474.25x = 8,211.38 × 8,211.38
  4. Step 4: Simplify right side
    5,474.25x = 67,426,679.39
  5. Step 5: Solve for x
    x = 67,426,679.39/5,474.25
  6. Step 6: Final answer
    x = 12,317.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.