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Finding the Fourth Proportional to 22,129.21, 30,537.24 and 12,057.60

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Solution

The fourth proportional to 22,129.21, 30,537.24 and 12,057.60 is: 16,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.21 : 30,537.24 = 12,057.60 : x
  2. Step 2: Convert to fraction form
    22,129.21/30,537.24 = 12,057.60/x
  3. Step 3: Cross multiply
    22,129.21x = 30,537.24 × 12,057.60
  4. Step 4: Simplify right side
    22,129.21x = 368,205,825.02
  5. Step 5: Solve for x
    x = 368,205,825.02/22,129.21
  6. Step 6: Final answer
    x = 16,638.91

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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.