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Finding the Fourth Proportional to 7,489.95, 11,241.89 and 3,794.81

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Solution

The fourth proportional to 7,489.95, 11,241.89 and 3,794.81 is: 5,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.95 : 11,241.89 = 3,794.81 : x
  2. Step 2: Convert to fraction form
    7,489.95/11,241.89 = 3,794.81/x
  3. Step 3: Cross multiply
    7,489.95x = 11,241.89 × 3,794.81
  4. Step 4: Simplify right side
    7,489.95x = 42,660,761.41
  5. Step 5: Solve for x
    x = 42,660,761.41/7,489.95
  6. Step 6: Final answer
    x = 5,695.73

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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.