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Finding the Fourth Proportional to 18,832.76, 28,229.42 and 6,348.48

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Solution

The fourth proportional to 18,832.76, 28,229.42 and 6,348.48 is: 9,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.76 : 28,229.42 = 6,348.48 : x
  2. Step 2: Convert to fraction form
    18,832.76/28,229.42 = 6,348.48/x
  3. Step 3: Cross multiply
    18,832.76x = 28,229.42 × 6,348.48
  4. Step 4: Simplify right side
    18,832.76x = 179,213,908.28
  5. Step 5: Solve for x
    x = 179,213,908.28/18,832.76
  6. Step 6: Final answer
    x = 9,516.07

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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.