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Finding the Fourth Proportional to 36,709.92, 50,658 and 20,796.72

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Solution

The fourth proportional to 36,709.92, 50,658 and 20,796.72 is: 28,698.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,709.92 : 50,658 = 20,796.72 : x
  2. Step 2: Convert to fraction form
    36,709.92/50,658 = 20,796.72/x
  3. Step 3: Cross multiply
    36,709.92x = 50,658 × 20,796.72
  4. Step 4: Simplify right side
    36,709.92x = 1,053,520,241.76
  5. Step 5: Solve for x
    x = 1,053,520,241.76/36,709.92
  6. Step 6: Final answer
    x = 28,698.52

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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.