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Finding the Fourth Proportional to 68,761.70, 94,899.78 and 41,912.62

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Solution

The fourth proportional to 68,761.70, 94,899.78 and 41,912.62 is: 57,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,761.70 : 94,899.78 = 41,912.62 : x
  2. Step 2: Convert to fraction form
    68,761.70/94,899.78 = 41,912.62/x
  3. Step 3: Cross multiply
    68,761.70x = 94,899.78 × 41,912.62
  4. Step 4: Simplify right side
    68,761.70x = 3,977,498,417.22
  5. Step 5: Solve for x
    x = 3,977,498,417.22/68,761.70
  6. Step 6: Final answer
    x = 57,844.68

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1.5x scale

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.