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Finding the Fourth Proportional to 18,832.98, 25,996.50 and 16,169.70

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Solution

The fourth proportional to 18,832.98, 25,996.50 and 16,169.70 is: 22,320.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.98 : 25,996.50 = 16,169.70 : x
  2. Step 2: Convert to fraction form
    18,832.98/25,996.50 = 16,169.70/x
  3. Step 3: Cross multiply
    18,832.98x = 25,996.50 × 16,169.70
  4. Step 4: Simplify right side
    18,832.98x = 420,355,606.05
  5. Step 5: Solve for x
    x = 420,355,606.05/18,832.98
  6. Step 6: Final answer
    x = 22,320.19

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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.