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Finding the Fourth Proportional to 7,933.62, 11,891.22 and 3,000.12

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Solution

The fourth proportional to 7,933.62, 11,891.22 and 3,000.12 is: 4,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.62 : 11,891.22 = 3,000.12 : x
  2. Step 2: Convert to fraction form
    7,933.62/11,891.22 = 3,000.12/x
  3. Step 3: Cross multiply
    7,933.62x = 11,891.22 × 3,000.12
  4. Step 4: Simplify right side
    7,933.62x = 35,675,086.95
  5. Step 5: Solve for x
    x = 35,675,086.95/7,933.62
  6. Step 6: Final answer
    x = 4,496.70

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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.