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Finding the Fourth Proportional to 6,367.88, 9,550.20 and 4,286.72

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Solution

The fourth proportional to 6,367.88, 9,550.20 and 4,286.72 is: 6,428.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.88 : 9,550.20 = 4,286.72 : x
  2. Step 2: Convert to fraction form
    6,367.88/9,550.20 = 4,286.72/x
  3. Step 3: Cross multiply
    6,367.88x = 9,550.20 × 4,286.72
  4. Step 4: Simplify right side
    6,367.88x = 40,939,033.34
  5. Step 5: Solve for x
    x = 40,939,033.34/6,367.88
  6. Step 6: Final answer
    x = 6,428.99

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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.