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Finding the Fourth Proportional to 28,451.99, 39,263.53 and 16,516.44

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Solution

The fourth proportional to 28,451.99, 39,263.53 and 16,516.44 is: 22,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.99 : 39,263.53 = 16,516.44 : x
  2. Step 2: Convert to fraction form
    28,451.99/39,263.53 = 16,516.44/x
  3. Step 3: Cross multiply
    28,451.99x = 39,263.53 × 16,516.44
  4. Step 4: Simplify right side
    28,451.99x = 648,493,737.43
  5. Step 5: Solve for x
    x = 648,493,737.43/28,451.99
  6. Step 6: Final answer
    x = 22,792.56

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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.