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Finding the Fourth Proportional to 73,092.48, 100,867.64 and 39,558.48

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Solution

The fourth proportional to 73,092.48, 100,867.64 and 39,558.48 is: 54,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,092.48 : 100,867.64 = 39,558.48 : x
  2. Step 2: Convert to fraction form
    73,092.48/100,867.64 = 39,558.48/x
  3. Step 3: Cross multiply
    73,092.48x = 100,867.64 × 39,558.48
  4. Step 4: Simplify right side
    73,092.48x = 3,990,170,321.79
  5. Step 5: Solve for x
    x = 3,990,170,321.79/73,092.48
  6. Step 6: Final answer
    x = 54,590.71

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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.