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Finding the Fourth Proportional to 36,956.61, 50,981.85 and 21,841.97

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Solution

The fourth proportional to 36,956.61, 50,981.85 and 21,841.97 is: 30,131.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,956.61 : 50,981.85 = 21,841.97 : x
  2. Step 2: Convert to fraction form
    36,956.61/50,981.85 = 21,841.97/x
  3. Step 3: Cross multiply
    36,956.61x = 50,981.85 × 21,841.97
  4. Step 4: Simplify right side
    36,956.61x = 1,113,543,783.34
  5. Step 5: Solve for x
    x = 1,113,543,783.34/36,956.61
  6. Step 6: Final answer
    x = 30,131.11

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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.