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Finding the Fourth Proportional to 43,441.92, 59,978.88 and 29,289.60

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Solution

The fourth proportional to 43,441.92, 59,978.88 and 29,289.60 is: 40,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,441.92 : 59,978.88 = 29,289.60 : x
  2. Step 2: Convert to fraction form
    43,441.92/59,978.88 = 29,289.60/x
  3. Step 3: Cross multiply
    43,441.92x = 59,978.88 × 29,289.60
  4. Step 4: Simplify right side
    43,441.92x = 1,756,757,403.65
  5. Step 5: Solve for x
    x = 1,756,757,403.65/43,441.92
  6. Step 6: Final answer
    x = 40,439.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.