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Finding the Fourth Proportional to 6,631.94, 9,950.18 and 4,163.87

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Solution

The fourth proportional to 6,631.94, 9,950.18 and 4,163.87 is: 6,247.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.94 : 9,950.18 = 4,163.87 : x
  2. Step 2: Convert to fraction form
    6,631.94/9,950.18 = 4,163.87/x
  3. Step 3: Cross multiply
    6,631.94x = 9,950.18 × 4,163.87
  4. Step 4: Simplify right side
    6,631.94x = 41,431,260.05
  5. Step 5: Solve for x
    x = 41,431,260.05/6,631.94
  6. Step 6: Final answer
    x = 6,247.23

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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.