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Finding the Fourth Proportional to 22,003.11, 33,007.81 and 7,208.87

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Solution

The fourth proportional to 22,003.11, 33,007.81 and 7,208.87 is: 10,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,003.11 : 33,007.81 = 7,208.87 : x
  2. Step 2: Convert to fraction form
    22,003.11/33,007.81 = 7,208.87/x
  3. Step 3: Cross multiply
    22,003.11x = 33,007.81 × 7,208.87
  4. Step 4: Simplify right side
    22,003.11x = 237,948,910.73
  5. Step 5: Solve for x
    x = 237,948,910.73/22,003.11
  6. Step 6: Final answer
    x = 10,814.33

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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.