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Finding the Fourth Proportional to 54,687.02, 81,845.28 and 33,640.38

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Solution

The fourth proportional to 54,687.02, 81,845.28 and 33,640.38 is: 50,346.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,687.02 : 81,845.28 = 33,640.38 : x
  2. Step 2: Convert to fraction form
    54,687.02/81,845.28 = 33,640.38/x
  3. Step 3: Cross multiply
    54,687.02x = 81,845.28 × 33,640.38
  4. Step 4: Simplify right side
    54,687.02x = 2,753,306,320.41
  5. Step 5: Solve for x
    x = 2,753,306,320.41/54,687.02
  6. Step 6: Final answer
    x = 50,346.62

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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.