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Finding the Fourth Proportional to 11,269.92, 16,905.88 and 2,949.92

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Solution

The fourth proportional to 11,269.92, 16,905.88 and 2,949.92 is: 4,425.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.92 : 16,905.88 = 2,949.92 : x
  2. Step 2: Convert to fraction form
    11,269.92/16,905.88 = 2,949.92/x
  3. Step 3: Cross multiply
    11,269.92x = 16,905.88 × 2,949.92
  4. Step 4: Simplify right side
    11,269.92x = 49,870,993.53
  5. Step 5: Solve for x
    x = 49,870,993.53/11,269.92
  6. Step 6: Final answer
    x = 4,425.14

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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.