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Finding the Fourth Proportional to 7,992.48, 11,982.24 and 2,797.92

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Solution

The fourth proportional to 7,992.48, 11,982.24 and 2,797.92 is: 4,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.48 : 11,982.24 = 2,797.92 : x
  2. Step 2: Convert to fraction form
    7,992.48/11,982.24 = 2,797.92/x
  3. Step 3: Cross multiply
    7,992.48x = 11,982.24 × 2,797.92
  4. Step 4: Simplify right side
    7,992.48x = 33,525,348.94
  5. Step 5: Solve for x
    x = 33,525,348.94/7,992.48
  6. Step 6: Final answer
    x = 4,194.61

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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.