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Finding the Fourth Proportional to 7,998.11, 11,997.15 and 4,100.03

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Solution

The fourth proportional to 7,998.11, 11,997.15 and 4,100.03 is: 6,150.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.11 : 11,997.15 = 4,100.03 : x
  2. Step 2: Convert to fraction form
    7,998.11/11,997.15 = 4,100.03/x
  3. Step 3: Cross multiply
    7,998.11x = 11,997.15 × 4,100.03
  4. Step 4: Simplify right side
    7,998.11x = 49,188,614.93
  5. Step 5: Solve for x
    x = 49,188,614.93/7,998.11
  6. Step 6: Final answer
    x = 6,150.03

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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.