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Finding the Fourth Proportional to 36,894.66, 50,914.39 and 20,979.11

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Solution

The fourth proportional to 36,894.66, 50,914.39 and 20,979.11 is: 28,951.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,894.66 : 50,914.39 = 20,979.11 : x
  2. Step 2: Convert to fraction form
    36,894.66/50,914.39 = 20,979.11/x
  3. Step 3: Cross multiply
    36,894.66x = 50,914.39 × 20,979.11
  4. Step 4: Simplify right side
    36,894.66x = 1,068,138,408.66
  5. Step 5: Solve for x
    x = 1,068,138,408.66/36,894.66
  6. Step 6: Final answer
    x = 28,951.03

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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.