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Finding the Fourth Proportional to 22,115.70, 33,174.36 and 7,325.91

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Solution

The fourth proportional to 22,115.70, 33,174.36 and 7,325.91 is: 10,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.70 : 33,174.36 = 7,325.91 : x
  2. Step 2: Convert to fraction form
    22,115.70/33,174.36 = 7,325.91/x
  3. Step 3: Cross multiply
    22,115.70x = 33,174.36 × 7,325.91
  4. Step 4: Simplify right side
    22,115.70x = 243,032,375.67
  5. Step 5: Solve for x
    x = 243,032,375.67/22,115.70
  6. Step 6: Final answer
    x = 10,989.13

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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.