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Finding the Fourth Proportional to 22,018.20, 33,029.87 and 7,020.09

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Solution

The fourth proportional to 22,018.20, 33,029.87 and 7,020.09 is: 10,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,018.20 : 33,029.87 = 7,020.09 : x
  2. Step 2: Convert to fraction form
    22,018.20/33,029.87 = 7,020.09/x
  3. Step 3: Cross multiply
    22,018.20x = 33,029.87 × 7,020.09
  4. Step 4: Simplify right side
    22,018.20x = 231,872,624.99
  5. Step 5: Solve for x
    x = 231,872,624.99/22,018.20
  6. Step 6: Final answer
    x = 10,530.95

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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.