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Finding the Fourth Proportional to 18,672.26, 28,008.76 and 5,524.62

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Solution

The fourth proportional to 18,672.26, 28,008.76 and 5,524.62 is: 8,287.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.26 : 28,008.76 = 5,524.62 : x
  2. Step 2: Convert to fraction form
    18,672.26/28,008.76 = 5,524.62/x
  3. Step 3: Cross multiply
    18,672.26x = 28,008.76 × 5,524.62
  4. Step 4: Simplify right side
    18,672.26x = 154,737,755.67
  5. Step 5: Solve for x
    x = 154,737,755.67/18,672.26
  6. Step 6: Final answer
    x = 8,287.04

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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.