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Finding the Fourth Proportional to 18,832.82, 28,229.19 and 8,951.23

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Solution

The fourth proportional to 18,832.82, 28,229.19 and 8,951.23 is: 13,417.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.82 : 28,229.19 = 8,951.23 : x
  2. Step 2: Convert to fraction form
    18,832.82/28,229.19 = 8,951.23/x
  3. Step 3: Cross multiply
    18,832.82x = 28,229.19 × 8,951.23
  4. Step 4: Simplify right side
    18,832.82x = 252,685,868.26
  5. Step 5: Solve for x
    x = 252,685,868.26/18,832.82
  6. Step 6: Final answer
    x = 13,417.31

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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.