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Finding the Fourth Proportional to 18,079.98, 27,082.72 and 8,692.28

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Solution

The fourth proportional to 18,079.98, 27,082.72 and 8,692.28 is: 13,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.98 : 27,082.72 = 8,692.28 : x
  2. Step 2: Convert to fraction form
    18,079.98/27,082.72 = 8,692.28/x
  3. Step 3: Cross multiply
    18,079.98x = 27,082.72 × 8,692.28
  4. Step 4: Simplify right side
    18,079.98x = 235,410,562.41
  5. Step 5: Solve for x
    x = 235,410,562.41/18,079.98
  6. Step 6: Final answer
    x = 13,020.51

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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.