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Finding the Fourth Proportional to 11,791.59, 16,253.51 and 8,949.71

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Solution

The fourth proportional to 11,791.59, 16,253.51 and 8,949.71 is: 12,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.59 : 16,253.51 = 8,949.71 : x
  2. Step 2: Convert to fraction form
    11,791.59/16,253.51 = 8,949.71/x
  3. Step 3: Cross multiply
    11,791.59x = 16,253.51 × 8,949.71
  4. Step 4: Simplify right side
    11,791.59x = 145,464,074.97
  5. Step 5: Solve for x
    x = 145,464,074.97/11,791.59
  6. Step 6: Final answer
    x = 12,336.26

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1.5x scale

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.