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Finding the Fourth Proportional to 36,906.86, 55,369.08 and 11,946.91

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Solution

The fourth proportional to 36,906.86, 55,369.08 and 11,946.91 is: 17,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,906.86 : 55,369.08 = 11,946.91 : x
  2. Step 2: Convert to fraction form
    36,906.86/55,369.08 = 11,946.91/x
  3. Step 3: Cross multiply
    36,906.86x = 55,369.08 × 11,946.91
  4. Step 4: Simplify right side
    36,906.86x = 661,489,415.54
  5. Step 5: Solve for x
    x = 661,489,415.54/36,906.86
  6. Step 6: Final answer
    x = 17,923.21

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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.