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Finding the Fourth Proportional to 16,383.50, 24,575.25 and 5,439.50

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Solution

The fourth proportional to 16,383.50, 24,575.25 and 5,439.50 is: 8,159.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,383.50 : 24,575.25 = 5,439.50 : x
  2. Step 2: Convert to fraction form
    16,383.50/24,575.25 = 5,439.50/x
  3. Step 3: Cross multiply
    16,383.50x = 24,575.25 × 5,439.50
  4. Step 4: Simplify right side
    16,383.50x = 133,677,072.38
  5. Step 5: Solve for x
    x = 133,677,072.38/16,383.50
  6. Step 6: Final answer
    x = 8,159.25

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Why These Related Problems?

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