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Finding the Fourth Proportional to 16,503.70, 24,759.39 and 5,409.70

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Solution

The fourth proportional to 16,503.70, 24,759.39 and 5,409.70 is: 8,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,503.70 : 24,759.39 = 5,409.70 : x
  2. Step 2: Convert to fraction form
    16,503.70/24,759.39 = 5,409.70/x
  3. Step 3: Cross multiply
    16,503.70x = 24,759.39 × 5,409.70
  4. Step 4: Simplify right side
    16,503.70x = 133,940,872.08
  5. Step 5: Solve for x
    x = 133,940,872.08/16,503.70
  6. Step 6: Final answer
    x = 8,115.81

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1.5x scale

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.