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Finding the Fourth Proportional to 2,773.92, 4,161.08 and 1,042.52

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Solution

The fourth proportional to 2,773.92, 4,161.08 and 1,042.52 is: 1,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.92 : 4,161.08 = 1,042.52 : x
  2. Step 2: Convert to fraction form
    2,773.92/4,161.08 = 1,042.52/x
  3. Step 3: Cross multiply
    2,773.92x = 4,161.08 × 1,042.52
  4. Step 4: Simplify right side
    2,773.92x = 4,338,009.12
  5. Step 5: Solve for x
    x = 4,338,009.12/2,773.92
  6. Step 6: Final answer
    x = 1,563.86

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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.