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Finding the Fourth Proportional to 16,638.50, 24,961.86 and 4,951.68

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Solution

The fourth proportional to 16,638.50, 24,961.86 and 4,951.68 is: 7,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.50 : 24,961.86 = 4,951.68 : x
  2. Step 2: Convert to fraction form
    16,638.50/24,961.86 = 4,951.68/x
  3. Step 3: Cross multiply
    16,638.50x = 24,961.86 × 4,951.68
  4. Step 4: Simplify right side
    16,638.50x = 123,603,142.92
  5. Step 5: Solve for x
    x = 123,603,142.92/16,638.50
  6. Step 6: Final answer
    x = 7,428.74

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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.