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Finding the Fourth Proportional to 11,951.45, 16,493.36 and 6,917.27

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Solution

The fourth proportional to 11,951.45, 16,493.36 and 6,917.27 is: 9,546.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.45 : 16,493.36 = 6,917.27 : x
  2. Step 2: Convert to fraction form
    11,951.45/16,493.36 = 6,917.27/x
  3. Step 3: Cross multiply
    11,951.45x = 16,493.36 × 6,917.27
  4. Step 4: Simplify right side
    11,951.45x = 114,088,907.27
  5. Step 5: Solve for x
    x = 114,088,907.27/11,951.45
  6. Step 6: Final answer
    x = 9,546.03

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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.