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Finding the Fourth Proportional to 40,394.67, 60,619.69 and 14,099.42

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Solution

The fourth proportional to 40,394.67, 60,619.69 and 14,099.42 is: 21,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,394.67 : 60,619.69 = 14,099.42 : x
  2. Step 2: Convert to fraction form
    40,394.67/60,619.69 = 14,099.42/x
  3. Step 3: Cross multiply
    40,394.67x = 60,619.69 × 14,099.42
  4. Step 4: Simplify right side
    40,394.67x = 854,702,469.58
  5. Step 5: Solve for x
    x = 854,702,469.58/40,394.67
  6. Step 6: Final answer
    x = 21,158.79

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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.