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Finding the Fourth Proportional to 8,676.10, 11,970.10 and 5,649.85

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Solution

The fourth proportional to 8,676.10, 11,970.10 and 5,649.85 is: 7,794.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.10 : 11,970.10 = 5,649.85 : x
  2. Step 2: Convert to fraction form
    8,676.10/11,970.10 = 5,649.85/x
  3. Step 3: Cross multiply
    8,676.10x = 11,970.10 × 5,649.85
  4. Step 4: Simplify right side
    8,676.10x = 67,629,269.49
  5. Step 5: Solve for x
    x = 67,629,269.49/8,676.10
  6. Step 6: Final answer
    x = 7,794.89

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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.