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Finding the Fourth Proportional to 43,979.72, 65,976.60 and 15,896.94

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Solution

The fourth proportional to 43,979.72, 65,976.60 and 15,896.94 is: 23,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,979.72 : 65,976.60 = 15,896.94 : x
  2. Step 2: Convert to fraction form
    43,979.72/65,976.60 = 15,896.94/x
  3. Step 3: Cross multiply
    43,979.72x = 65,976.60 × 15,896.94
  4. Step 4: Simplify right side
    43,979.72x = 1,048,826,051.60
  5. Step 5: Solve for x
    x = 1,048,826,051.60/43,979.72
  6. Step 6: Final answer
    x = 23,847.95

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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.