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Finding the Fourth Proportional to 18,891.97, 26,072.48 and 10,936.96

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Solution

The fourth proportional to 18,891.97, 26,072.48 and 10,936.96 is: 15,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.97 : 26,072.48 = 10,936.96 : x
  2. Step 2: Convert to fraction form
    18,891.97/26,072.48 = 10,936.96/x
  3. Step 3: Cross multiply
    18,891.97x = 26,072.48 × 10,936.96
  4. Step 4: Simplify right side
    18,891.97x = 285,153,670.86
  5. Step 5: Solve for x
    x = 285,153,670.86/18,891.97
  6. Step 6: Final answer
    x = 15,093.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.