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Finding the Fourth Proportional to 43,743.76, 65,608.62 and 15,658.60

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Solution

The fourth proportional to 43,743.76, 65,608.62 and 15,658.60 is: 23,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,743.76 : 65,608.62 = 15,658.60 : x
  2. Step 2: Convert to fraction form
    43,743.76/65,608.62 = 15,658.60/x
  3. Step 3: Cross multiply
    43,743.76x = 65,608.62 × 15,658.60
  4. Step 4: Simplify right side
    43,743.76x = 1,027,339,137.13
  5. Step 5: Solve for x
    x = 1,027,339,137.13/43,743.76
  6. Step 6: Final answer
    x = 23,485.39

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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.