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Finding the Fourth Proportional to 13,399.68, 20,092.08 and 5,500.08

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Solution

The fourth proportional to 13,399.68, 20,092.08 and 5,500.08 is: 8,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.68 : 20,092.08 = 5,500.08 : x
  2. Step 2: Convert to fraction form
    13,399.68/20,092.08 = 5,500.08/x
  3. Step 3: Cross multiply
    13,399.68x = 20,092.08 × 5,500.08
  4. Step 4: Simplify right side
    13,399.68x = 110,508,047.37
  5. Step 5: Solve for x
    x = 110,508,047.37/13,399.68
  6. Step 6: Final answer
    x = 8,247.07

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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.