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Finding the Fourth Proportional to 11,950.87, 17,928.58 and 5,711.37

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Solution

The fourth proportional to 11,950.87, 17,928.58 and 5,711.37 is: 8,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,950.87 : 17,928.58 = 5,711.37 : x
  2. Step 2: Convert to fraction form
    11,950.87/17,928.58 = 5,711.37/x
  3. Step 3: Cross multiply
    11,950.87x = 17,928.58 × 5,711.37
  4. Step 4: Simplify right side
    11,950.87x = 102,396,739.68
  5. Step 5: Solve for x
    x = 102,396,739.68/11,950.87
  6. Step 6: Final answer
    x = 8,568.14

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1.5x scale

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.