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Finding the Fourth Proportional to 7,471.68, 11,202.03 and 3,578.82

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Solution

The fourth proportional to 7,471.68, 11,202.03 and 3,578.82 is: 5,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.68 : 11,202.03 = 3,578.82 : x
  2. Step 2: Convert to fraction form
    7,471.68/11,202.03 = 3,578.82/x
  3. Step 3: Cross multiply
    7,471.68x = 11,202.03 × 3,578.82
  4. Step 4: Simplify right side
    7,471.68x = 40,090,049.00
  5. Step 5: Solve for x
    x = 40,090,049.00/7,471.68
  6. Step 6: Final answer
    x = 5,365.60

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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.