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Finding the Third Proportional to 4,087.88 and 6,115.69

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Solution

The third proportional to 4,087.88 and 6,115.69 is: 9,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.88 : 6,115.69 = 6,115.69 : x
  2. Step 2: Convert to fraction form
    4,087.88/6,115.69 = 6,115.69/x
  3. Step 3: Cross multiply
    4,087.88x = 6,115.69 × 6,115.69
  4. Step 4: Simplify right side
    4,087.88x = 37,401,633.60
  5. Step 5: Solve for x
    x = 37,401,633.60/4,087.88
  6. Step 6: Final answer
    x = 9,149.41

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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.