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Finding the Fourth Proportional to 18,910.94, 26,093.14 and 10,952.69

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Solution

The fourth proportional to 18,910.94, 26,093.14 and 10,952.69 is: 15,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.94 : 26,093.14 = 10,952.69 : x
  2. Step 2: Convert to fraction form
    18,910.94/26,093.14 = 10,952.69/x
  3. Step 3: Cross multiply
    18,910.94x = 26,093.14 × 10,952.69
  4. Step 4: Simplify right side
    18,910.94x = 285,789,915.70
  5. Step 5: Solve for x
    x = 285,789,915.70/18,910.94
  6. Step 6: Final answer
    x = 15,112.42

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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.