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Finding the Fourth Proportional to 3,676.86, 5,511.24 and 2,029.86

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Solution

The fourth proportional to 3,676.86, 5,511.24 and 2,029.86 is: 3,042.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.86 : 5,511.24 = 2,029.86 : x
  2. Step 2: Convert to fraction form
    3,676.86/5,511.24 = 2,029.86/x
  3. Step 3: Cross multiply
    3,676.86x = 5,511.24 × 2,029.86
  4. Step 4: Simplify right side
    3,676.86x = 11,187,045.63
  5. Step 5: Solve for x
    x = 11,187,045.63/3,676.86
  6. Step 6: Final answer
    x = 3,042.55

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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.