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Finding the Fourth Proportional to 11,716.92, 16,170.06 and 6,682.11

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Solution

The fourth proportional to 11,716.92, 16,170.06 and 6,682.11 is: 9,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.92 : 16,170.06 = 6,682.11 : x
  2. Step 2: Convert to fraction form
    11,716.92/16,170.06 = 6,682.11/x
  3. Step 3: Cross multiply
    11,716.92x = 16,170.06 × 6,682.11
  4. Step 4: Simplify right side
    11,716.92x = 108,050,175.00
  5. Step 5: Solve for x
    x = 108,050,175.00/11,716.92
  6. Step 6: Final answer
    x = 9,221.72

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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.