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Finding the Fourth Proportional to 40,647.57, 60,965.11 and 11,067.69

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Solution

The fourth proportional to 40,647.57, 60,965.11 and 11,067.69 is: 16,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,647.57 : 60,965.11 = 11,067.69 : x
  2. Step 2: Convert to fraction form
    40,647.57/60,965.11 = 11,067.69/x
  3. Step 3: Cross multiply
    40,647.57x = 60,965.11 × 11,067.69
  4. Step 4: Simplify right side
    40,647.57x = 674,742,775.57
  5. Step 5: Solve for x
    x = 674,742,775.57/40,647.57
  6. Step 6: Final answer
    x = 16,599.83

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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.