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Finding the Fourth Proportional to 22,112.42, 33,168.42 and 8,961.66

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Solution

The fourth proportional to 22,112.42, 33,168.42 and 8,961.66 is: 13,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,112.42 : 33,168.42 = 8,961.66 : x
  2. Step 2: Convert to fraction form
    22,112.42/33,168.42 = 8,961.66/x
  3. Step 3: Cross multiply
    22,112.42x = 33,168.42 × 8,961.66
  4. Step 4: Simplify right side
    22,112.42x = 297,244,102.78
  5. Step 5: Solve for x
    x = 297,244,102.78/22,112.42
  6. Step 6: Final answer
    x = 13,442.41

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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.