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Finding the Fourth Proportional to 11,797.38, 16,273.62 and 7,078.86

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Solution

The fourth proportional to 11,797.38, 16,273.62 and 7,078.86 is: 9,764.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,797.38 : 16,273.62 = 7,078.86 : x
  2. Step 2: Convert to fraction form
    11,797.38/16,273.62 = 7,078.86/x
  3. Step 3: Cross multiply
    11,797.38x = 16,273.62 × 7,078.86
  4. Step 4: Simplify right side
    11,797.38x = 115,198,677.67
  5. Step 5: Solve for x
    x = 115,198,677.67/11,797.38
  6. Step 6: Final answer
    x = 9,764.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.