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Finding the Fourth Proportional to 22,263.28, 33,407.22 and 12,408.12

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Solution

The fourth proportional to 22,263.28, 33,407.22 and 12,408.12 is: 18,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,263.28 : 33,407.22 = 12,408.12 : x
  2. Step 2: Convert to fraction form
    22,263.28/33,407.22 = 12,408.12/x
  3. Step 3: Cross multiply
    22,263.28x = 33,407.22 × 12,408.12
  4. Step 4: Simplify right side
    22,263.28x = 414,520,627.59
  5. Step 5: Solve for x
    x = 414,520,627.59/22,263.28
  6. Step 6: Final answer
    x = 18,619.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.