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Finding the Fourth Proportional to 17,917.15, 24,725.64 and 9,960.12

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Solution

The fourth proportional to 17,917.15, 24,725.64 and 9,960.12 is: 13,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.15 : 24,725.64 = 9,960.12 : x
  2. Step 2: Convert to fraction form
    17,917.15/24,725.64 = 9,960.12/x
  3. Step 3: Cross multiply
    17,917.15x = 24,725.64 × 9,960.12
  4. Step 4: Simplify right side
    17,917.15x = 246,270,217.85
  5. Step 5: Solve for x
    x = 246,270,217.85/17,917.15
  6. Step 6: Final answer
    x = 13,744.94

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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.