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Finding the Fourth Proportional to 33,220.73, 45,855.72 and 19,796.20

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Solution

The fourth proportional to 33,220.73, 45,855.72 and 19,796.20 is: 27,325.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.73 : 45,855.72 = 19,796.20 : x
  2. Step 2: Convert to fraction form
    33,220.73/45,855.72 = 19,796.20/x
  3. Step 3: Cross multiply
    33,220.73x = 45,855.72 × 19,796.20
  4. Step 4: Simplify right side
    33,220.73x = 907,768,889.62
  5. Step 5: Solve for x
    x = 907,768,889.62/33,220.73
  6. Step 6: Final answer
    x = 27,325.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.