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Finding the Fourth Proportional to 17,190.88, 25,763.28 and 7,936.48

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Solution

The fourth proportional to 17,190.88, 25,763.28 and 7,936.48 is: 11,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,190.88 : 25,763.28 = 7,936.48 : x
  2. Step 2: Convert to fraction form
    17,190.88/25,763.28 = 7,936.48/x
  3. Step 3: Cross multiply
    17,190.88x = 25,763.28 × 7,936.48
  4. Step 4: Simplify right side
    17,190.88x = 204,469,756.45
  5. Step 5: Solve for x
    x = 204,469,756.45/17,190.88
  6. Step 6: Final answer
    x = 11,894.08

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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.