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Finding the Fourth Proportional to 11,815.18, 16,310.97 and 8,006.94

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Solution

The fourth proportional to 11,815.18, 16,310.97 and 8,006.94 is: 11,053.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.18 : 16,310.97 = 8,006.94 : x
  2. Step 2: Convert to fraction form
    11,815.18/16,310.97 = 8,006.94/x
  3. Step 3: Cross multiply
    11,815.18x = 16,310.97 × 8,006.94
  4. Step 4: Simplify right side
    11,815.18x = 130,600,876.58
  5. Step 5: Solve for x
    x = 130,600,876.58/11,815.18
  6. Step 6: Final answer
    x = 11,053.65

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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.