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Finding the Fourth Proportional to 20,552.82, 28,361.52 and 11,600.70

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Solution

The fourth proportional to 20,552.82, 28,361.52 and 11,600.70 is: 16,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.82 : 28,361.52 = 11,600.70 : x
  2. Step 2: Convert to fraction form
    20,552.82/28,361.52 = 11,600.70/x
  3. Step 3: Cross multiply
    20,552.82x = 28,361.52 × 11,600.70
  4. Step 4: Simplify right side
    20,552.82x = 329,013,485.06
  5. Step 5: Solve for x
    x = 329,013,485.06/20,552.82
  6. Step 6: Final answer
    x = 16,008.19

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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.