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Finding the Fourth Proportional to 62,912.73, 86,819.40 and 34,618.35

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Solution

The fourth proportional to 62,912.73, 86,819.40 and 34,618.35 is: 47,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,912.73 : 86,819.40 = 34,618.35 : x
  2. Step 2: Convert to fraction form
    62,912.73/86,819.40 = 34,618.35/x
  3. Step 3: Cross multiply
    62,912.73x = 86,819.40 × 34,618.35
  4. Step 4: Simplify right side
    62,912.73x = 3,005,544,375.99
  5. Step 5: Solve for x
    x = 3,005,544,375.99/62,912.73
  6. Step 6: Final answer
    x = 47,773.23

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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.