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Finding the Fourth Proportional to 34,920.53, 52,379.39 and 8,624.60

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Solution

The fourth proportional to 34,920.53, 52,379.39 and 8,624.60 is: 12,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,920.53 : 52,379.39 = 8,624.60 : x
  2. Step 2: Convert to fraction form
    34,920.53/52,379.39 = 8,624.60/x
  3. Step 3: Cross multiply
    34,920.53x = 52,379.39 × 8,624.60
  4. Step 4: Simplify right side
    34,920.53x = 451,751,243.87
  5. Step 5: Solve for x
    x = 451,751,243.87/34,920.53
  6. Step 6: Final answer
    x = 12,936.55

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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.