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Finding the Fourth Proportional to 3,326.73, 4,983.71 and 1,861.44

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Solution

The fourth proportional to 3,326.73, 4,983.71 and 1,861.44 is: 2,788.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.73 : 4,983.71 = 1,861.44 : x
  2. Step 2: Convert to fraction form
    3,326.73/4,983.71 = 1,861.44/x
  3. Step 3: Cross multiply
    3,326.73x = 4,983.71 × 1,861.44
  4. Step 4: Simplify right side
    3,326.73x = 9,276,877.14
  5. Step 5: Solve for x
    x = 9,276,877.14/3,326.73
  6. Step 6: Final answer
    x = 2,788.59

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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.