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Finding the Fourth Proportional to 57,795.70, 86,705.70 and 32,815.30

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Solution

The fourth proportional to 57,795.70, 86,705.70 and 32,815.30 is: 49,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,795.70 : 86,705.70 = 32,815.30 : x
  2. Step 2: Convert to fraction form
    57,795.70/86,705.70 = 32,815.30/x
  3. Step 3: Cross multiply
    57,795.70x = 86,705.70 × 32,815.30
  4. Step 4: Simplify right side
    57,795.70x = 2,845,273,557.21
  5. Step 5: Solve for x
    x = 2,845,273,557.21/57,795.70
  6. Step 6: Final answer
    x = 49,229.85

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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.