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Finding the Fourth Proportional to 7,467.91, 11,201.87 and 3,080.55

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Solution

The fourth proportional to 7,467.91, 11,201.87 and 3,080.55 is: 4,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,467.91 : 11,201.87 = 3,080.55 : x
  2. Step 2: Convert to fraction form
    7,467.91/11,201.87 = 3,080.55/x
  3. Step 3: Cross multiply
    7,467.91x = 11,201.87 × 3,080.55
  4. Step 4: Simplify right side
    7,467.91x = 34,507,920.63
  5. Step 5: Solve for x
    x = 34,507,920.63/7,467.91
  6. Step 6: Final answer
    x = 4,620.83

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Similar ratio
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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.