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Finding the Fourth Proportional to 2,092.87, 2,887.72 and 1,208.98

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Solution

The fourth proportional to 2,092.87, 2,887.72 and 1,208.98 is: 1,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.87 : 2,887.72 = 1,208.98 : x
  2. Step 2: Convert to fraction form
    2,092.87/2,887.72 = 1,208.98/x
  3. Step 3: Cross multiply
    2,092.87x = 2,887.72 × 1,208.98
  4. Step 4: Simplify right side
    2,092.87x = 3,491,195.73
  5. Step 5: Solve for x
    x = 3,491,195.73/2,092.87
  6. Step 6: Final answer
    x = 1,668.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.