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Finding the Fourth Proportional to 7,841.52, 11,757.24 and 3,675.96

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Solution

The fourth proportional to 7,841.52, 11,757.24 and 3,675.96 is: 5,511.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.52 : 11,757.24 = 3,675.96 : x
  2. Step 2: Convert to fraction form
    7,841.52/11,757.24 = 3,675.96/x
  3. Step 3: Cross multiply
    7,841.52x = 11,757.24 × 3,675.96
  4. Step 4: Simplify right side
    7,841.52x = 43,219,143.95
  5. Step 5: Solve for x
    x = 43,219,143.95/7,841.52
  6. Step 6: Final answer
    x = 5,511.58

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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.