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Finding the Fourth Proportional to 18,832.44, 28,232.54 and 7,732.20

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Solution

The fourth proportional to 18,832.44, 28,232.54 and 7,732.20 is: 11,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.44 : 28,232.54 = 7,732.20 : x
  2. Step 2: Convert to fraction form
    18,832.44/28,232.54 = 7,732.20/x
  3. Step 3: Cross multiply
    18,832.44x = 28,232.54 × 7,732.20
  4. Step 4: Simplify right side
    18,832.44x = 218,299,645.79
  5. Step 5: Solve for x
    x = 218,299,645.79/18,832.44
  6. Step 6: Final answer
    x = 11,591.68

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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.