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Finding the Fourth Proportional to 22,187.60, 33,269.08 and 7,388.44

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Solution

The fourth proportional to 22,187.60, 33,269.08 and 7,388.44 is: 11,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.60 : 33,269.08 = 7,388.44 : x
  2. Step 2: Convert to fraction form
    22,187.60/33,269.08 = 7,388.44/x
  3. Step 3: Cross multiply
    22,187.60x = 33,269.08 × 7,388.44
  4. Step 4: Simplify right side
    22,187.60x = 245,806,601.44
  5. Step 5: Solve for x
    x = 245,806,601.44/22,187.60
  6. Step 6: Final answer
    x = 11,078.56

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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.