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Finding the Fourth Proportional to 36,861.78, 50,869.98 and 20,094.78

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Solution

The fourth proportional to 36,861.78, 50,869.98 and 20,094.78 is: 27,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,861.78 : 50,869.98 = 20,094.78 : x
  2. Step 2: Convert to fraction form
    36,861.78/50,869.98 = 20,094.78/x
  3. Step 3: Cross multiply
    36,861.78x = 50,869.98 × 20,094.78
  4. Step 4: Simplify right side
    36,861.78x = 1,022,221,056.70
  5. Step 5: Solve for x
    x = 1,022,221,056.70/36,861.78
  6. Step 6: Final answer
    x = 27,731.19

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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.