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Finding the Fourth Proportional to 16,099.76, 22,218.24 and 9,389.68

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Solution

The fourth proportional to 16,099.76, 22,218.24 and 9,389.68 is: 12,958.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,099.76 : 22,218.24 = 9,389.68 : x
  2. Step 2: Convert to fraction form
    16,099.76/22,218.24 = 9,389.68/x
  3. Step 3: Cross multiply
    16,099.76x = 22,218.24 × 9,389.68
  4. Step 4: Simplify right side
    16,099.76x = 208,622,163.76
  5. Step 5: Solve for x
    x = 208,622,163.76/16,099.76
  6. Step 6: Final answer
    x = 12,958.09

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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.