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Finding the Fourth Proportional to 36,129.80, 54,186.60 and 23,736.80

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Solution

The fourth proportional to 36,129.80, 54,186.60 and 23,736.80 is: 35,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.80 : 54,186.60 = 23,736.80 : x
  2. Step 2: Convert to fraction form
    36,129.80/54,186.60 = 23,736.80/x
  3. Step 3: Cross multiply
    36,129.80x = 54,186.60 × 23,736.80
  4. Step 4: Simplify right side
    36,129.80x = 1,286,216,486.88
  5. Step 5: Solve for x
    x = 1,286,216,486.88/36,129.80
  6. Step 6: Final answer
    x = 35,599.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.