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Finding the Fourth Proportional to 17,917.40, 24,725.98 and 9,960.36

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Solution

The fourth proportional to 17,917.40, 24,725.98 and 9,960.36 is: 13,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.40 : 24,725.98 = 9,960.36 : x
  2. Step 2: Convert to fraction form
    17,917.40/24,725.98 = 9,960.36/x
  3. Step 3: Cross multiply
    17,917.40x = 24,725.98 × 9,960.36
  4. Step 4: Simplify right side
    17,917.40x = 246,279,662.15
  5. Step 5: Solve for x
    x = 246,279,662.15/17,917.40
  6. Step 6: Final answer
    x = 13,745.28

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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.