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Finding the Fourth Proportional to 8,624.53, 11,894.89 and 5,791.05

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Solution

The fourth proportional to 8,624.53, 11,894.89 and 5,791.05 is: 7,986.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.53 : 11,894.89 = 5,791.05 : x
  2. Step 2: Convert to fraction form
    8,624.53/11,894.89 = 5,791.05/x
  3. Step 3: Cross multiply
    8,624.53x = 11,894.89 × 5,791.05
  4. Step 4: Simplify right side
    8,624.53x = 68,883,902.73
  5. Step 5: Solve for x
    x = 68,883,902.73/8,624.53
  6. Step 6: Final answer
    x = 7,986.97

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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.