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Finding the Fourth Proportional to 43,512.88, 65,128.11 and 23,494.54

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Solution

The fourth proportional to 43,512.88, 65,128.11 and 23,494.54 is: 35,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,512.88 : 65,128.11 = 23,494.54 : x
  2. Step 2: Convert to fraction form
    43,512.88/65,128.11 = 23,494.54/x
  3. Step 3: Cross multiply
    43,512.88x = 65,128.11 × 23,494.54
  4. Step 4: Simplify right side
    43,512.88x = 1,530,154,985.52
  5. Step 5: Solve for x
    x = 1,530,154,985.52/43,512.88
  6. Step 6: Final answer
    x = 35,165.56

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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.