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Finding the Fourth Proportional to 76,791.74, 115,093.85 and 34,660.94

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Solution

The fourth proportional to 76,791.74, 115,093.85 and 34,660.94 is: 51,949.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,791.74 : 115,093.85 = 34,660.94 : x
  2. Step 2: Convert to fraction form
    76,791.74/115,093.85 = 34,660.94/x
  3. Step 3: Cross multiply
    76,791.74x = 115,093.85 × 34,660.94
  4. Step 4: Simplify right side
    76,791.74x = 3,989,260,280.45
  5. Step 5: Solve for x
    x = 3,989,260,280.45/76,791.74
  6. Step 6: Final answer
    x = 51,949.08

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1.5x scale

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.