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Finding the Fourth Proportional to 43,171.94, 64,757.67 and 13,591.94

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Solution

The fourth proportional to 43,171.94, 64,757.67 and 13,591.94 is: 20,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,171.94 : 64,757.67 = 13,591.94 : x
  2. Step 2: Convert to fraction form
    43,171.94/64,757.67 = 13,591.94/x
  3. Step 3: Cross multiply
    43,171.94x = 64,757.67 × 13,591.94
  4. Step 4: Simplify right side
    43,171.94x = 880,182,365.18
  5. Step 5: Solve for x
    x = 880,182,365.18/43,171.94
  6. Step 6: Final answer
    x = 20,387.83

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1.5x scale

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.