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Finding the Fourth Proportional to 29,399.72, 44,102.38 and 8,340.20

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Solution

The fourth proportional to 29,399.72, 44,102.38 and 8,340.20 is: 12,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,399.72 : 44,102.38 = 8,340.20 : x
  2. Step 2: Convert to fraction form
    29,399.72/44,102.38 = 8,340.20/x
  3. Step 3: Cross multiply
    29,399.72x = 44,102.38 × 8,340.20
  4. Step 4: Simplify right side
    29,399.72x = 367,822,669.68
  5. Step 5: Solve for x
    x = 367,822,669.68/29,399.72
  6. Step 6: Final answer
    x = 12,511.09

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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.