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Finding the Fourth Proportional to 43,751.25, 65,640.69 and 33,271.47

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Solution

The fourth proportional to 43,751.25, 65,640.69 and 33,271.47 is: 49,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,751.25 : 65,640.69 = 33,271.47 : x
  2. Step 2: Convert to fraction form
    43,751.25/65,640.69 = 33,271.47/x
  3. Step 3: Cross multiply
    43,751.25x = 65,640.69 × 33,271.47
  4. Step 4: Simplify right side
    43,751.25x = 2,183,962,248.11
  5. Step 5: Solve for x
    x = 2,183,962,248.11/43,751.25
  6. Step 6: Final answer
    x = 49,917.71

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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.