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Finding the Fourth Proportional to 50,930.79, 76,396.08 and 28,734.09

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Solution

The fourth proportional to 50,930.79, 76,396.08 and 28,734.09 is: 43,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,930.79 : 76,396.08 = 28,734.09 : x
  2. Step 2: Convert to fraction form
    50,930.79/76,396.08 = 28,734.09/x
  3. Step 3: Cross multiply
    50,930.79x = 76,396.08 × 28,734.09
  4. Step 4: Simplify right side
    50,930.79x = 2,195,171,838.37
  5. Step 5: Solve for x
    x = 2,195,171,838.37/50,930.79
  6. Step 6: Final answer
    x = 43,101.08

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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.