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Finding the Fourth Proportional to 57,318.40, 85,949.40 and 33,671.96

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Solution

The fourth proportional to 57,318.40, 85,949.40 and 33,671.96 is: 50,491.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,318.40 : 85,949.40 = 33,671.96 : x
  2. Step 2: Convert to fraction form
    57,318.40/85,949.40 = 33,671.96/x
  3. Step 3: Cross multiply
    57,318.40x = 85,949.40 × 33,671.96
  4. Step 4: Simplify right side
    57,318.40x = 2,894,084,758.82
  5. Step 5: Solve for x
    x = 2,894,084,758.82/57,318.40
  6. Step 6: Final answer
    x = 50,491.37

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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.