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Finding the Fourth Proportional to 36,942.57, 50,980.74 and 20,175.57

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Solution

The fourth proportional to 36,942.57, 50,980.74 and 20,175.57 is: 27,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,942.57 : 50,980.74 = 20,175.57 : x
  2. Step 2: Convert to fraction form
    36,942.57/50,980.74 = 20,175.57/x
  3. Step 3: Cross multiply
    36,942.57x = 50,980.74 × 20,175.57
  4. Step 4: Simplify right side
    36,942.57x = 1,028,565,488.52
  5. Step 5: Solve for x
    x = 1,028,565,488.52/36,942.57
  6. Step 6: Final answer
    x = 27,842.28

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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.