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Finding the Fourth Proportional to 11,997.33, 17,998.81 and 4,099.91

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Solution

The fourth proportional to 11,997.33, 17,998.81 and 4,099.91 is: 6,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.33 : 17,998.81 = 4,099.91 : x
  2. Step 2: Convert to fraction form
    11,997.33/17,998.81 = 4,099.91/x
  3. Step 3: Cross multiply
    11,997.33x = 17,998.81 × 4,099.91
  4. Step 4: Simplify right side
    11,997.33x = 73,793,559.37
  5. Step 5: Solve for x
    x = 73,793,559.37/11,997.33
  6. Step 6: Final answer
    x = 6,150.83

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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.