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Finding the Fourth Proportional to 22,163.93, 30,582.03 and 13,212.27

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Solution

The fourth proportional to 22,163.93, 30,582.03 and 13,212.27 is: 18,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.93 : 30,582.03 = 13,212.27 : x
  2. Step 2: Convert to fraction form
    22,163.93/30,582.03 = 13,212.27/x
  3. Step 3: Cross multiply
    22,163.93x = 30,582.03 × 13,212.27
  4. Step 4: Simplify right side
    22,163.93x = 404,057,884.60
  5. Step 5: Solve for x
    x = 404,057,884.60/22,163.93
  6. Step 6: Final answer
    x = 18,230.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.