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Finding the Fourth Proportional to 45,747.87, 68,645.30 and 34,650.87

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Solution

The fourth proportional to 45,747.87, 68,645.30 and 34,650.87 is: 51,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,747.87 : 68,645.30 = 34,650.87 : x
  2. Step 2: Convert to fraction form
    45,747.87/68,645.30 = 34,650.87/x
  3. Step 3: Cross multiply
    45,747.87x = 68,645.30 × 34,650.87
  4. Step 4: Simplify right side
    45,747.87x = 2,378,619,193.16
  5. Step 5: Solve for x
    x = 2,378,619,193.16/45,747.87
  6. Step 6: Final answer
    x = 51,994.10

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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.