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Finding the Fourth Proportional to 11,993,791.86, 16,551,823.95 and 6,561,283.86

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Solution

The fourth proportional to 11,993,791.86, 16,551,823.95 and 6,561,283.86 is: 9,054,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993,791.86 : 16,551,823.95 = 6,561,283.86 : x
  2. Step 2: Convert to fraction form
    11,993,791.86/16,551,823.95 = 6,561,283.86/x
  3. Step 3: Cross multiply
    11,993,791.86x = 16,551,823.95 × 6,561,283.86
  4. Step 4: Simplify right side
    11,993,791.86x = 108,601,215,336,696.45
  5. Step 5: Solve for x
    x = 108,601,215,336,696.45/11,993,791.86
  6. Step 6: Final answer
    x = 9,054,785.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.