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Finding the Fourth Proportional to 36,892.87, 50,905.81 and 20,757.94

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Solution

The fourth proportional to 36,892.87, 50,905.81 and 20,757.94 is: 28,642.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,892.87 : 50,905.81 = 20,757.94 : x
  2. Step 2: Convert to fraction form
    36,892.87/50,905.81 = 20,757.94/x
  3. Step 3: Cross multiply
    36,892.87x = 50,905.81 × 20,757.94
  4. Step 4: Simplify right side
    36,892.87x = 1,056,699,722.45
  5. Step 5: Solve for x
    x = 1,056,699,722.45/36,892.87
  6. Step 6: Final answer
    x = 28,642.38

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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.