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Finding the Fourth Proportional to 18,107.38, 27,037.19 and 16,221.09

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Solution

The fourth proportional to 18,107.38, 27,037.19 and 16,221.09 is: 24,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.38 : 27,037.19 = 16,221.09 : x
  2. Step 2: Convert to fraction form
    18,107.38/27,037.19 = 16,221.09/x
  3. Step 3: Cross multiply
    18,107.38x = 27,037.19 × 16,221.09
  4. Step 4: Simplify right side
    18,107.38x = 438,572,692.34
  5. Step 5: Solve for x
    x = 438,572,692.34/18,107.38
  6. Step 6: Final answer
    x = 24,220.66

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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.