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Finding the Fourth Proportional to 20,249.96, 27,944.14 and 11,751.64

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Solution

The fourth proportional to 20,249.96, 27,944.14 and 11,751.64 is: 16,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.96 : 27,944.14 = 11,751.64 : x
  2. Step 2: Convert to fraction form
    20,249.96/27,944.14 = 11,751.64/x
  3. Step 3: Cross multiply
    20,249.96x = 27,944.14 × 11,751.64
  4. Step 4: Simplify right side
    20,249.96x = 328,389,473.39
  5. Step 5: Solve for x
    x = 328,389,473.39/20,249.96
  6. Step 6: Final answer
    x = 16,216.80

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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.