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Finding the Fourth Proportional to 67,343.44, 100,993.29 and 31,799.26

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Solution

The fourth proportional to 67,343.44, 100,993.29 and 31,799.26 is: 47,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,343.44 : 100,993.29 = 31,799.26 : x
  2. Step 2: Convert to fraction form
    67,343.44/100,993.29 = 31,799.26/x
  3. Step 3: Cross multiply
    67,343.44x = 100,993.29 × 31,799.26
  4. Step 4: Simplify right side
    67,343.44x = 3,211,511,886.97
  5. Step 5: Solve for x
    x = 3,211,511,886.97/67,343.44
  6. Step 6: Final answer
    x = 47,688.56

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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.