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Finding the Fourth Proportional to 43,757.76, 65,629.60 and 15,672.64

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Solution

The fourth proportional to 43,757.76, 65,629.60 and 15,672.64 is: 23,506.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,757.76 : 65,629.60 = 15,672.64 : x
  2. Step 2: Convert to fraction form
    43,757.76/65,629.60 = 15,672.64/x
  3. Step 3: Cross multiply
    43,757.76x = 65,629.60 × 15,672.64
  4. Step 4: Simplify right side
    43,757.76x = 1,028,589,094.14
  5. Step 5: Solve for x
    x = 1,028,589,094.14/43,757.76
  6. Step 6: Final answer
    x = 23,506.44

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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.