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Finding the Fourth Proportional to 36,805.57, 50,791.70 and 20,038.57

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Solution

The fourth proportional to 36,805.57, 50,791.70 and 20,038.57 is: 27,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,805.57 : 50,791.70 = 20,038.57 : x
  2. Step 2: Convert to fraction form
    36,805.57/50,791.70 = 20,038.57/x
  3. Step 3: Cross multiply
    36,805.57x = 50,791.70 × 20,038.57
  4. Step 4: Simplify right side
    36,805.57x = 1,017,793,035.87
  5. Step 5: Solve for x
    x = 1,017,793,035.87/36,805.57
  6. Step 6: Final answer
    x = 27,653.23

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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.