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Finding the Fourth Proportional to 11,958.88, 17,910.48 and 11,543.60

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Solution

The fourth proportional to 11,958.88, 17,910.48 and 11,543.60 is: 17,288.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.88 : 17,910.48 = 11,543.60 : x
  2. Step 2: Convert to fraction form
    11,958.88/17,910.48 = 11,543.60/x
  3. Step 3: Cross multiply
    11,958.88x = 17,910.48 × 11,543.60
  4. Step 4: Simplify right side
    11,958.88x = 206,751,416.93
  5. Step 5: Solve for x
    x = 206,751,416.93/11,958.88
  6. Step 6: Final answer
    x = 17,288.53

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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.