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Finding the Fourth Proportional to 22,379.45, 33,561.99 and 7,383.20

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Solution

The fourth proportional to 22,379.45, 33,561.99 and 7,383.20 is: 11,072.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.45 : 33,561.99 = 7,383.20 : x
  2. Step 2: Convert to fraction form
    22,379.45/33,561.99 = 7,383.20/x
  3. Step 3: Cross multiply
    22,379.45x = 33,561.99 × 7,383.20
  4. Step 4: Simplify right side
    22,379.45x = 247,794,716.76
  5. Step 5: Solve for x
    x = 247,794,716.76/22,379.45
  6. Step 6: Final answer
    x = 11,072.42

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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.