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Finding the Third Proportional to 5,909.63 and 8,286.75

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Solution

The third proportional to 5,909.63 and 8,286.75 is: 11,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.63 : 8,286.75 = 8,286.75 : x
  2. Step 2: Convert to fraction form
    5,909.63/8,286.75 = 8,286.75/x
  3. Step 3: Cross multiply
    5,909.63x = 8,286.75 × 8,286.75
  4. Step 4: Simplify right side
    5,909.63x = 68,670,225.56
  5. Step 5: Solve for x
    x = 68,670,225.56/5,909.63
  6. Step 6: Final answer
    x = 11,620.06

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.