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Finding the Fourth Proportional to 36,765.66, 50,748.15 and 21,657.30

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Solution

The fourth proportional to 36,765.66, 50,748.15 and 21,657.30 is: 29,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,765.66 : 50,748.15 = 21,657.30 : x
  2. Step 2: Convert to fraction form
    36,765.66/50,748.15 = 21,657.30/x
  3. Step 3: Cross multiply
    36,765.66x = 50,748.15 × 21,657.30
  4. Step 4: Simplify right side
    36,765.66x = 1,099,067,909.00
  5. Step 5: Solve for x
    x = 1,099,067,909.00/36,765.66
  6. Step 6: Final answer
    x = 29,893.87

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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.