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Finding the Fourth Proportional to 18,827.92, 28,244.96 and 6,349.12

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Solution

The fourth proportional to 18,827.92, 28,244.96 and 6,349.12 is: 9,524.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.92 : 28,244.96 = 6,349.12 : x
  2. Step 2: Convert to fraction form
    18,827.92/28,244.96 = 6,349.12/x
  3. Step 3: Cross multiply
    18,827.92x = 28,244.96 × 6,349.12
  4. Step 4: Simplify right side
    18,827.92x = 179,330,640.44
  5. Step 5: Solve for x
    x = 179,330,640.44/18,827.92
  6. Step 6: Final answer
    x = 9,524.72

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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.