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Finding the Fourth Proportional to 28,194.50, 42,278.24 and 9,469.33

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Solution

The fourth proportional to 28,194.50, 42,278.24 and 9,469.33 is: 14,199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.50 : 42,278.24 = 9,469.33 : x
  2. Step 2: Convert to fraction form
    28,194.50/42,278.24 = 9,469.33/x
  3. Step 3: Cross multiply
    28,194.50x = 42,278.24 × 9,469.33
  4. Step 4: Simplify right side
    28,194.50x = 400,346,735.54
  5. Step 5: Solve for x
    x = 400,346,735.54/28,194.50
  6. Step 6: Final answer
    x = 14,199.46

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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.