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Finding the Fourth Proportional to 7,951.16, 11,910.83 and 4,786.84

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Solution

The fourth proportional to 7,951.16, 11,910.83 and 4,786.84 is: 7,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.16 : 11,910.83 = 4,786.84 : x
  2. Step 2: Convert to fraction form
    7,951.16/11,910.83 = 4,786.84/x
  3. Step 3: Cross multiply
    7,951.16x = 11,910.83 × 4,786.84
  4. Step 4: Simplify right side
    7,951.16x = 57,015,237.48
  5. Step 5: Solve for x
    x = 57,015,237.48/7,951.16
  6. Step 6: Final answer
    x = 7,170.68

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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.