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Finding the Fourth Proportional to 23,879.73, 35,821.86 and 9,840.69

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Solution

The fourth proportional to 23,879.73, 35,821.86 and 9,840.69 is: 14,761.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,879.73 : 35,821.86 = 9,840.69 : x
  2. Step 2: Convert to fraction form
    23,879.73/35,821.86 = 9,840.69/x
  3. Step 3: Cross multiply
    23,879.73x = 35,821.86 × 9,840.69
  4. Step 4: Simplify right side
    23,879.73x = 352,511,819.48
  5. Step 5: Solve for x
    x = 352,511,819.48/23,879.73
  6. Step 6: Final answer
    x = 14,761.97

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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.