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Finding the Fourth Proportional to 43,848.20, 65,772.30 and 40,640.60

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Solution

The fourth proportional to 43,848.20, 65,772.30 and 40,640.60 is: 60,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,848.20 : 65,772.30 = 40,640.60 : x
  2. Step 2: Convert to fraction form
    43,848.20/65,772.30 = 40,640.60/x
  3. Step 3: Cross multiply
    43,848.20x = 65,772.30 × 40,640.60
  4. Step 4: Simplify right side
    43,848.20x = 2,673,025,735.38
  5. Step 5: Solve for x
    x = 2,673,025,735.38/43,848.20
  6. Step 6: Final answer
    x = 60,960.90

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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.