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Finding the Fourth Proportional to 7,388.34, 11,080.62 and 2,193

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Solution

The fourth proportional to 7,388.34, 11,080.62 and 2,193 is: 3,288.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.34 : 11,080.62 = 2,193 : x
  2. Step 2: Convert to fraction form
    7,388.34/11,080.62 = 2,193/x
  3. Step 3: Cross multiply
    7,388.34x = 11,080.62 × 2,193
  4. Step 4: Simplify right side
    7,388.34x = 24,299,799.66
  5. Step 5: Solve for x
    x = 24,299,799.66/7,388.34
  6. Step 6: Final answer
    x = 3,288.94

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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.