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Finding the Fourth Proportional to 31,902.83, 47,850.59 and 8,531.09

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Solution

The fourth proportional to 31,902.83, 47,850.59 and 8,531.09 is: 12,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.83 : 47,850.59 = 8,531.09 : x
  2. Step 2: Convert to fraction form
    31,902.83/47,850.59 = 8,531.09/x
  3. Step 3: Cross multiply
    31,902.83x = 47,850.59 × 8,531.09
  4. Step 4: Simplify right side
    31,902.83x = 408,217,450.59
  5. Step 5: Solve for x
    x = 408,217,450.59/31,902.83
  6. Step 6: Final answer
    x = 12,795.65

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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.