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Finding the Fourth Proportional to 62,907.57, 86,795.21 and 43,765.85

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Solution

The fourth proportional to 62,907.57, 86,795.21 and 43,765.85 is: 60,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,907.57 : 86,795.21 = 43,765.85 : x
  2. Step 2: Convert to fraction form
    62,907.57/86,795.21 = 43,765.85/x
  3. Step 3: Cross multiply
    62,907.57x = 86,795.21 × 43,765.85
  4. Step 4: Simplify right side
    62,907.57x = 3,798,665,488.77
  5. Step 5: Solve for x
    x = 3,798,665,488.77/62,907.57
  6. Step 6: Final answer
    x = 60,384.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.