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Finding the Fourth Proportional to 20,249.16, 27,943.99 and 12,183.01

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Solution

The fourth proportional to 20,249.16, 27,943.99 and 12,183.01 is: 16,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.16 : 27,943.99 = 12,183.01 : x
  2. Step 2: Convert to fraction form
    20,249.16/27,943.99 = 12,183.01/x
  3. Step 3: Cross multiply
    20,249.16x = 27,943.99 × 12,183.01
  4. Step 4: Simplify right side
    20,249.16x = 340,441,809.29
  5. Step 5: Solve for x
    x = 340,441,809.29/20,249.16
  6. Step 6: Final answer
    x = 16,812.63

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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.