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Finding the Fourth Proportional to 7,481.77, 11,224.12 and 2,216.87

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Solution

The fourth proportional to 7,481.77, 11,224.12 and 2,216.87 is: 3,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.77 : 11,224.12 = 2,216.87 : x
  2. Step 2: Convert to fraction form
    7,481.77/11,224.12 = 2,216.87/x
  3. Step 3: Cross multiply
    7,481.77x = 11,224.12 × 2,216.87
  4. Step 4: Simplify right side
    7,481.77x = 24,882,399.49
  5. Step 5: Solve for x
    x = 24,882,399.49/7,481.77
  6. Step 6: Final answer
    x = 3,325.74

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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.