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Finding the Fourth Proportional to 18,250.80, 27,376.20 and 5,938.80

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Solution

The fourth proportional to 18,250.80, 27,376.20 and 5,938.80 is: 8,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,250.80 : 27,376.20 = 5,938.80 : x
  2. Step 2: Convert to fraction form
    18,250.80/27,376.20 = 5,938.80/x
  3. Step 3: Cross multiply
    18,250.80x = 27,376.20 × 5,938.80
  4. Step 4: Simplify right side
    18,250.80x = 162,581,776.56
  5. Step 5: Solve for x
    x = 162,581,776.56/18,250.80
  6. Step 6: Final answer
    x = 8,908.20

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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.