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Finding the Fourth Proportional to 19,843.92, 29,765.79 and 5,992.92

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Solution

The fourth proportional to 19,843.92, 29,765.79 and 5,992.92 is: 8,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.92 : 29,765.79 = 5,992.92 : x
  2. Step 2: Convert to fraction form
    19,843.92/29,765.79 = 5,992.92/x
  3. Step 3: Cross multiply
    19,843.92x = 29,765.79 × 5,992.92
  4. Step 4: Simplify right side
    19,843.92x = 178,383,998.21
  5. Step 5: Solve for x
    x = 178,383,998.21/19,843.92
  6. Step 6: Final answer
    x = 8,989.35

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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.