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Finding the Fourth Proportional to 17,951.43, 24,771.78 and 9,993.45

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Solution

The fourth proportional to 17,951.43, 24,771.78 and 9,993.45 is: 13,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,951.43 : 24,771.78 = 9,993.45 : x
  2. Step 2: Convert to fraction form
    17,951.43/24,771.78 = 9,993.45/x
  3. Step 3: Cross multiply
    17,951.43x = 24,771.78 × 9,993.45
  4. Step 4: Simplify right side
    17,951.43x = 247,555,544.84
  5. Step 5: Solve for x
    x = 247,555,544.84/17,951.43
  6. Step 6: Final answer
    x = 13,790.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.