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Finding the Fourth Proportional to 4,751.91, 7,126.02 and 3,286.62

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Solution

The fourth proportional to 4,751.91, 7,126.02 and 3,286.62 is: 4,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.91 : 7,126.02 = 3,286.62 : x
  2. Step 2: Convert to fraction form
    4,751.91/7,126.02 = 3,286.62/x
  3. Step 3: Cross multiply
    4,751.91x = 7,126.02 × 3,286.62
  4. Step 4: Simplify right side
    4,751.91x = 23,420,519.85
  5. Step 5: Solve for x
    x = 23,420,519.85/4,751.91
  6. Step 6: Final answer
    x = 4,928.65

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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.