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Finding the Fourth Proportional to 22,189.73, 33,289.89 and 7,398.77

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Solution

The fourth proportional to 22,189.73, 33,289.89 and 7,398.77 is: 11,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,189.73 : 33,289.89 = 7,398.77 : x
  2. Step 2: Convert to fraction form
    22,189.73/33,289.89 = 7,398.77/x
  3. Step 3: Cross multiply
    22,189.73x = 33,289.89 × 7,398.77
  4. Step 4: Simplify right side
    22,189.73x = 246,304,239.44
  5. Step 5: Solve for x
    x = 246,304,239.44/22,189.73
  6. Step 6: Final answer
    x = 11,099.92

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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.