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Finding the Fourth Proportional to 2,771.73, 4,157.52 and 1,127.86

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Solution

The fourth proportional to 2,771.73, 4,157.52 and 1,127.86 is: 1,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.73 : 4,157.52 = 1,127.86 : x
  2. Step 2: Convert to fraction form
    2,771.73/4,157.52 = 1,127.86/x
  3. Step 3: Cross multiply
    2,771.73x = 4,157.52 × 1,127.86
  4. Step 4: Simplify right side
    2,771.73x = 4,689,100.51
  5. Step 5: Solve for x
    x = 4,689,100.51/2,771.73
  6. Step 6: Final answer
    x = 1,691.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.