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Finding the Fourth Proportional to 43,957.70, 65,936.34 and 15,877.73

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Solution

The fourth proportional to 43,957.70, 65,936.34 and 15,877.73 is: 23,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,957.70 : 65,936.34 = 15,877.73 : x
  2. Step 2: Convert to fraction form
    43,957.70/65,936.34 = 15,877.73/x
  3. Step 3: Cross multiply
    43,957.70x = 65,936.34 × 15,877.73
  4. Step 4: Simplify right side
    43,957.70x = 1,046,919,568.55
  5. Step 5: Solve for x
    x = 1,046,919,568.55/43,957.70
  6. Step 6: Final answer
    x = 23,816.52

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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.