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Finding the Fourth Proportional to 32,728.02, 49,091.49 and 8,104.02

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Solution

The fourth proportional to 32,728.02, 49,091.49 and 8,104.02 is: 12,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.02 : 49,091.49 = 8,104.02 : x
  2. Step 2: Convert to fraction form
    32,728.02/49,091.49 = 8,104.02/x
  3. Step 3: Cross multiply
    32,728.02x = 49,091.49 × 8,104.02
  4. Step 4: Simplify right side
    32,728.02x = 397,838,416.79
  5. Step 5: Solve for x
    x = 397,838,416.79/32,728.02
  6. Step 6: Final answer
    x = 12,155.90

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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.