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Finding the Fourth Proportional to 18,081.21, 24,947.78 and 10,522.97

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Solution

The fourth proportional to 18,081.21, 24,947.78 and 10,522.97 is: 14,519.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.21 : 24,947.78 = 10,522.97 : x
  2. Step 2: Convert to fraction form
    18,081.21/24,947.78 = 10,522.97/x
  3. Step 3: Cross multiply
    18,081.21x = 24,947.78 × 10,522.97
  4. Step 4: Simplify right side
    18,081.21x = 262,524,563.15
  5. Step 5: Solve for x
    x = 262,524,563.15/18,081.21
  6. Step 6: Final answer
    x = 14,519.19

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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.