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Finding the Fourth Proportional to 22,255.70, 33,383.54 and 18,947.66

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Solution

The fourth proportional to 22,255.70, 33,383.54 and 18,947.66 is: 28,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.70 : 33,383.54 = 18,947.66 : x
  2. Step 2: Convert to fraction form
    22,255.70/33,383.54 = 18,947.66/x
  3. Step 3: Cross multiply
    22,255.70x = 33,383.54 × 18,947.66
  4. Step 4: Simplify right side
    22,255.70x = 632,539,845.97
  5. Step 5: Solve for x
    x = 632,539,845.97/22,255.70
  6. Step 6: Final answer
    x = 28,421.48

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.