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Finding the Fourth Proportional to 12,168.68, 16,791.11 and 6,790.49

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Solution

The fourth proportional to 12,168.68, 16,791.11 and 6,790.49 is: 9,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.68 : 16,791.11 = 6,790.49 : x
  2. Step 2: Convert to fraction form
    12,168.68/16,791.11 = 6,790.49/x
  3. Step 3: Cross multiply
    12,168.68x = 16,791.11 × 6,790.49
  4. Step 4: Simplify right side
    12,168.68x = 114,019,746.64
  5. Step 5: Solve for x
    x = 114,019,746.64/12,168.68
  6. Step 6: Final answer
    x = 9,369.94

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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.