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Finding the Fourth Proportional to 18,907.72, 26,093.94 and 10,952.20

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Solution

The fourth proportional to 18,907.72, 26,093.94 and 10,952.20 is: 15,114.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.72 : 26,093.94 = 10,952.20 : x
  2. Step 2: Convert to fraction form
    18,907.72/26,093.94 = 10,952.20/x
  3. Step 3: Cross multiply
    18,907.72x = 26,093.94 × 10,952.20
  4. Step 4: Simplify right side
    18,907.72x = 285,786,049.67
  5. Step 5: Solve for x
    x = 285,786,049.67/18,907.72
  6. Step 6: Final answer
    x = 15,114.78

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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.