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Finding the Fourth Proportional to 22,205.70, 33,308.55 and 11,837.70

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Solution

The fourth proportional to 22,205.70, 33,308.55 and 11,837.70 is: 17,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.70 : 33,308.55 = 11,837.70 : x
  2. Step 2: Convert to fraction form
    22,205.70/33,308.55 = 11,837.70/x
  3. Step 3: Cross multiply
    22,205.70x = 33,308.55 × 11,837.70
  4. Step 4: Simplify right side
    22,205.70x = 394,296,622.34
  5. Step 5: Solve for x
    x = 394,296,622.34/22,205.70
  6. Step 6: Final answer
    x = 17,756.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.