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Finding the Fourth Proportional to 18,195.80, 27,135.41 and 16,179.89

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Solution

The fourth proportional to 18,195.80, 27,135.41 and 16,179.89 is: 24,129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.80 : 27,135.41 = 16,179.89 : x
  2. Step 2: Convert to fraction form
    18,195.80/27,135.41 = 16,179.89/x
  3. Step 3: Cross multiply
    18,195.80x = 27,135.41 × 16,179.89
  4. Step 4: Simplify right side
    18,195.80x = 439,047,732.33
  5. Step 5: Solve for x
    x = 439,047,732.33/18,195.80
  6. Step 6: Final answer
    x = 24,129.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.