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Finding the Fourth Proportional to 17,129.99, 25,694.44 and 7,763.15

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Solution

The fourth proportional to 17,129.99, 25,694.44 and 7,763.15 is: 11,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.99 : 25,694.44 = 7,763.15 : x
  2. Step 2: Convert to fraction form
    17,129.99/25,694.44 = 7,763.15/x
  3. Step 3: Cross multiply
    17,129.99x = 25,694.44 × 7,763.15
  4. Step 4: Simplify right side
    17,129.99x = 199,469,791.89
  5. Step 5: Solve for x
    x = 199,469,791.89/17,129.99
  6. Step 6: Final answer
    x = 11,644.48

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1.5x scale

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.