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Finding the Fourth Proportional to 73,015.41, 100,761.26 and 39,481.41

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Solution

The fourth proportional to 73,015.41, 100,761.26 and 39,481.41 is: 54,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,015.41 : 100,761.26 = 39,481.41 : x
  2. Step 2: Convert to fraction form
    73,015.41/100,761.26 = 39,481.41/x
  3. Step 3: Cross multiply
    73,015.41x = 100,761.26 × 39,481.41
  4. Step 4: Simplify right side
    73,015.41x = 3,978,196,420.77
  5. Step 5: Solve for x
    x = 3,978,196,420.77/73,015.41
  6. Step 6: Final answer
    x = 54,484.34

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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.