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Finding the Fourth Proportional to 8,940.24, 12,331.44 and 5,214.24

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Solution

The fourth proportional to 8,940.24, 12,331.44 and 5,214.24 is: 7,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.24 : 12,331.44 = 5,214.24 : x
  2. Step 2: Convert to fraction form
    8,940.24/12,331.44 = 5,214.24/x
  3. Step 3: Cross multiply
    8,940.24x = 12,331.44 × 5,214.24
  4. Step 4: Simplify right side
    8,940.24x = 64,299,087.71
  5. Step 5: Solve for x
    x = 64,299,087.71/8,940.24
  6. Step 6: Final answer
    x = 7,192.10

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