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Finding the Fourth Proportional to 7,487.92, 11,231.88 and 2,293.84

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Solution

The fourth proportional to 7,487.92, 11,231.88 and 2,293.84 is: 3,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.92 : 11,231.88 = 2,293.84 : x
  2. Step 2: Convert to fraction form
    7,487.92/11,231.88 = 2,293.84/x
  3. Step 3: Cross multiply
    7,487.92x = 11,231.88 × 2,293.84
  4. Step 4: Simplify right side
    7,487.92x = 25,764,135.62
  5. Step 5: Solve for x
    x = 25,764,135.62/7,487.92
  6. Step 6: Final answer
    x = 3,440.76

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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.