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Finding the Fourth Proportional to 7,493.20, 11,240.12 and 3,797.20

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Solution

The fourth proportional to 7,493.20, 11,240.12 and 3,797.20 is: 5,695.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.20 : 11,240.12 = 3,797.20 : x
  2. Step 2: Convert to fraction form
    7,493.20/11,240.12 = 3,797.20/x
  3. Step 3: Cross multiply
    7,493.20x = 11,240.12 × 3,797.20
  4. Step 4: Simplify right side
    7,493.20x = 42,680,983.66
  5. Step 5: Solve for x
    x = 42,680,983.66/7,493.20
  6. Step 6: Final answer
    x = 5,695.96

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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.