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Finding the Fourth Proportional to 27,906.68, 41,865.77 and 9,187.83

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Solution

The fourth proportional to 27,906.68, 41,865.77 and 9,187.83 is: 13,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.68 : 41,865.77 = 9,187.83 : x
  2. Step 2: Convert to fraction form
    27,906.68/41,865.77 = 9,187.83/x
  3. Step 3: Cross multiply
    27,906.68x = 41,865.77 × 9,187.83
  4. Step 4: Simplify right side
    27,906.68x = 384,655,613.47
  5. Step 5: Solve for x
    x = 384,655,613.47/27,906.68
  6. Step 6: Final answer
    x = 13,783.64

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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.