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Finding the Fourth Proportional to 11,170.82, 16,736.79 and 7,656.59

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Solution

The fourth proportional to 11,170.82, 16,736.79 and 7,656.59 is: 11,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.82 : 16,736.79 = 7,656.59 : x
  2. Step 2: Convert to fraction form
    11,170.82/16,736.79 = 7,656.59/x
  3. Step 3: Cross multiply
    11,170.82x = 16,736.79 × 7,656.59
  4. Step 4: Simplify right side
    11,170.82x = 128,146,738.95
  5. Step 5: Solve for x
    x = 128,146,738.95/11,170.82
  6. Step 6: Final answer
    x = 11,471.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.