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Finding the Fourth Proportional to 6,991.62, 10,481.49 and 3,093.90

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Solution

The fourth proportional to 6,991.62, 10,481.49 and 3,093.90 is: 4,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.62 : 10,481.49 = 3,093.90 : x
  2. Step 2: Convert to fraction form
    6,991.62/10,481.49 = 3,093.90/x
  3. Step 3: Cross multiply
    6,991.62x = 10,481.49 × 3,093.90
  4. Step 4: Simplify right side
    6,991.62x = 32,428,681.91
  5. Step 5: Solve for x
    x = 32,428,681.91/6,991.62
  6. Step 6: Final answer
    x = 4,638.22

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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.