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Finding the Fourth Proportional to 6,751.92, 10,120.95 and 3,236.79

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Solution

The fourth proportional to 6,751.92, 10,120.95 and 3,236.79 is: 4,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.92 : 10,120.95 = 3,236.79 : x
  2. Step 2: Convert to fraction form
    6,751.92/10,120.95 = 3,236.79/x
  3. Step 3: Cross multiply
    6,751.92x = 10,120.95 × 3,236.79
  4. Step 4: Simplify right side
    6,751.92x = 32,759,389.75
  5. Step 5: Solve for x
    x = 32,759,389.75/6,751.92
  6. Step 6: Final answer
    x = 4,851.86

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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.