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Finding the Fourth Proportional to 40,441.76, 60,662.63 and 12,361.89

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Solution

The fourth proportional to 40,441.76, 60,662.63 and 12,361.89 is: 18,542.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,441.76 : 60,662.63 = 12,361.89 : x
  2. Step 2: Convert to fraction form
    40,441.76/60,662.63 = 12,361.89/x
  3. Step 3: Cross multiply
    40,441.76x = 60,662.63 × 12,361.89
  4. Step 4: Simplify right side
    40,441.76x = 749,904,697.36
  5. Step 5: Solve for x
    x = 749,904,697.36/40,441.76
  6. Step 6: Final answer
    x = 18,542.83

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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.