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Finding the Fourth Proportional to 7,912.59, 11,876.63 and 3,755.41

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Solution

The fourth proportional to 7,912.59, 11,876.63 and 3,755.41 is: 5,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.59 : 11,876.63 = 3,755.41 : x
  2. Step 2: Convert to fraction form
    7,912.59/11,876.63 = 3,755.41/x
  3. Step 3: Cross multiply
    7,912.59x = 11,876.63 × 3,755.41
  4. Step 4: Simplify right side
    7,912.59x = 44,601,633.41
  5. Step 5: Solve for x
    x = 44,601,633.41/7,912.59
  6. Step 6: Final answer
    x = 5,636.80

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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.