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Finding the Fourth Proportional to 53,919.30, 80,891.10 and 16,481.10

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Solution

The fourth proportional to 53,919.30, 80,891.10 and 16,481.10 is: 24,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,919.30 : 80,891.10 = 16,481.10 : x
  2. Step 2: Convert to fraction form
    53,919.30/80,891.10 = 16,481.10/x
  3. Step 3: Cross multiply
    53,919.30x = 80,891.10 × 16,481.10
  4. Step 4: Simplify right side
    53,919.30x = 1,333,174,308.21
  5. Step 5: Solve for x
    x = 1,333,174,308.21/53,919.30
  6. Step 6: Final answer
    x = 24,725.36

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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.