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Finding the Fourth Proportional to 2,745.91, 4,119.92 and 1,102.93

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Solution

The fourth proportional to 2,745.91, 4,119.92 and 1,102.93 is: 1,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.91 : 4,119.92 = 1,102.93 : x
  2. Step 2: Convert to fraction form
    2,745.91/4,119.92 = 1,102.93/x
  3. Step 3: Cross multiply
    2,745.91x = 4,119.92 × 1,102.93
  4. Step 4: Simplify right side
    2,745.91x = 4,543,957.25
  5. Step 5: Solve for x
    x = 4,543,957.25/2,745.91
  6. Step 6: Final answer
    x = 1,654.81

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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.