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Finding the Fourth Proportional to 23,879.28, 35,819.02 and 7,239.46

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Solution

The fourth proportional to 23,879.28, 35,819.02 and 7,239.46 is: 10,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,879.28 : 35,819.02 = 7,239.46 : x
  2. Step 2: Convert to fraction form
    23,879.28/35,819.02 = 7,239.46/x
  3. Step 3: Cross multiply
    23,879.28x = 35,819.02 × 7,239.46
  4. Step 4: Simplify right side
    23,879.28x = 259,310,431.21
  5. Step 5: Solve for x
    x = 259,310,431.21/23,879.28
  6. Step 6: Final answer
    x = 10,859.22

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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.