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Finding the Fourth Proportional to 10,720.45, 14,793.94 and 5,940.27

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Solution

The fourth proportional to 10,720.45, 14,793.94 and 5,940.27 is: 8,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.45 : 14,793.94 = 5,940.27 : x
  2. Step 2: Convert to fraction form
    10,720.45/14,793.94 = 5,940.27/x
  3. Step 3: Cross multiply
    10,720.45x = 14,793.94 × 5,940.27
  4. Step 4: Simplify right side
    10,720.45x = 87,880,005.39
  5. Step 5: Solve for x
    x = 87,880,005.39/10,720.45
  6. Step 6: Final answer
    x = 8,197.42

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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.