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Finding the Fourth Proportional to 36,405.40, 54,629.70 and 23,961.10

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Solution

The fourth proportional to 36,405.40, 54,629.70 and 23,961.10 is: 35,955.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405.40 : 54,629.70 = 23,961.10 : x
  2. Step 2: Convert to fraction form
    36,405.40/54,629.70 = 23,961.10/x
  3. Step 3: Cross multiply
    36,405.40x = 54,629.70 × 23,961.10
  4. Step 4: Simplify right side
    36,405.40x = 1,308,987,704.67
  5. Step 5: Solve for x
    x = 1,308,987,704.67/36,405.40
  6. Step 6: Final answer
    x = 35,955.87

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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.