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Finding the Fourth Proportional to 64,543.75, 89,074.92 and 36,249.46

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Solution

The fourth proportional to 64,543.75, 89,074.92 and 36,249.46 is: 50,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,543.75 : 89,074.92 = 36,249.46 : x
  2. Step 2: Convert to fraction form
    64,543.75/89,074.92 = 36,249.46/x
  3. Step 3: Cross multiply
    64,543.75x = 89,074.92 × 36,249.46
  4. Step 4: Simplify right side
    64,543.75x = 3,228,917,749.54
  5. Step 5: Solve for x
    x = 3,228,917,749.54/64,543.75
  6. Step 6: Final answer
    x = 50,026.81

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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.