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Finding the Fourth Proportional to 16,961.25, 25,441.92 and 5,274.48

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Solution

The fourth proportional to 16,961.25, 25,441.92 and 5,274.48 is: 7,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,961.25 : 25,441.92 = 5,274.48 : x
  2. Step 2: Convert to fraction form
    16,961.25/25,441.92 = 5,274.48/x
  3. Step 3: Cross multiply
    16,961.25x = 25,441.92 × 5,274.48
  4. Step 4: Simplify right side
    16,961.25x = 134,192,898.20
  5. Step 5: Solve for x
    x = 134,192,898.20/16,961.25
  6. Step 6: Final answer
    x = 7,911.73

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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.