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Finding the Fourth Proportional to 7,474.28, 11,205.48 and 4,844.48

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Solution

The fourth proportional to 7,474.28, 11,205.48 and 4,844.48 is: 7,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.28 : 11,205.48 = 4,844.48 : x
  2. Step 2: Convert to fraction form
    7,474.28/11,205.48 = 4,844.48/x
  3. Step 3: Cross multiply
    7,474.28x = 11,205.48 × 4,844.48
  4. Step 4: Simplify right side
    7,474.28x = 54,284,723.75
  5. Step 5: Solve for x
    x = 54,284,723.75/7,474.28
  6. Step 6: Final answer
    x = 7,262.87

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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.