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Finding the Fourth Proportional to 53,797.75, 80,709.59 and 16,861.75

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Solution

The fourth proportional to 53,797.75, 80,709.59 and 16,861.75 is: 25,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,797.75 : 80,709.59 = 16,861.75 : x
  2. Step 2: Convert to fraction form
    53,797.75/80,709.59 = 16,861.75/x
  3. Step 3: Cross multiply
    53,797.75x = 80,709.59 × 16,861.75
  4. Step 4: Simplify right side
    53,797.75x = 1,360,904,844.87
  5. Step 5: Solve for x
    x = 1,360,904,844.87/53,797.75
  6. Step 6: Final answer
    x = 25,296.69

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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.