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Finding the Fourth Proportional to 14,091.94, 21,137.94 and 4,231.18

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Solution

The fourth proportional to 14,091.94, 21,137.94 and 4,231.18 is: 6,346.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.94 : 21,137.94 = 4,231.18 : x
  2. Step 2: Convert to fraction form
    14,091.94/21,137.94 = 4,231.18/x
  3. Step 3: Cross multiply
    14,091.94x = 21,137.94 × 4,231.18
  4. Step 4: Simplify right side
    14,091.94x = 89,438,428.97
  5. Step 5: Solve for x
    x = 89,438,428.97/14,091.94
  6. Step 6: Final answer
    x = 6,346.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.