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Finding the Fourth Proportional to 11,295.52, 16,947.60 and 5,451.64

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Solution

The fourth proportional to 11,295.52, 16,947.60 and 5,451.64 is: 8,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,295.52 : 16,947.60 = 5,451.64 : x
  2. Step 2: Convert to fraction form
    11,295.52/16,947.60 = 5,451.64/x
  3. Step 3: Cross multiply
    11,295.52x = 16,947.60 × 5,451.64
  4. Step 4: Simplify right side
    11,295.52x = 92,392,214.06
  5. Step 5: Solve for x
    x = 92,392,214.06/11,295.52
  6. Step 6: Final answer
    x = 8,179.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.