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Finding the Fourth Proportional to 36,407.88, 50,238.77 and 20,491.92

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Solution

The fourth proportional to 36,407.88, 50,238.77 and 20,491.92 is: 28,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,407.88 : 50,238.77 = 20,491.92 : x
  2. Step 2: Convert to fraction form
    36,407.88/50,238.77 = 20,491.92/x
  3. Step 3: Cross multiply
    36,407.88x = 50,238.77 × 20,491.92
  4. Step 4: Simplify right side
    36,407.88x = 1,029,488,753.28
  5. Step 5: Solve for x
    x = 1,029,488,753.28/36,407.88
  6. Step 6: Final answer
    x = 28,276.54

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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.