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Finding the Fourth Proportional to 14,650.80, 20,218.17 and 7,936.44

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Solution

The fourth proportional to 14,650.80, 20,218.17 and 7,936.44 is: 10,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,650.80 : 20,218.17 = 7,936.44 : x
  2. Step 2: Convert to fraction form
    14,650.80/20,218.17 = 7,936.44/x
  3. Step 3: Cross multiply
    14,650.80x = 20,218.17 × 7,936.44
  4. Step 4: Simplify right side
    14,650.80x = 160,460,293.11
  5. Step 5: Solve for x
    x = 160,460,293.11/14,650.80
  6. Step 6: Final answer
    x = 10,952.32

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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.