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Finding the Fourth Proportional to 18,809.82, 28,249.89 and 16,559.16

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Solution

The fourth proportional to 18,809.82, 28,249.89 and 16,559.16 is: 24,869.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809.82 : 28,249.89 = 16,559.16 : x
  2. Step 2: Convert to fraction form
    18,809.82/28,249.89 = 16,559.16/x
  3. Step 3: Cross multiply
    18,809.82x = 28,249.89 × 16,559.16
  4. Step 4: Simplify right side
    18,809.82x = 467,794,339.45
  5. Step 5: Solve for x
    x = 467,794,339.45/18,809.82
  6. Step 6: Final answer
    x = 24,869.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.