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Finding the Fourth Proportional to 73,092.64, 100,867.92 and 39,558.56

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Solution

The fourth proportional to 73,092.64, 100,867.92 and 39,558.56 is: 54,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,092.64 : 100,867.92 = 39,558.56 : x
  2. Step 2: Convert to fraction form
    73,092.64/100,867.92 = 39,558.56/x
  3. Step 3: Cross multiply
    73,092.64x = 100,867.92 × 39,558.56
  4. Step 4: Simplify right side
    73,092.64x = 3,990,189,665.40
  5. Step 5: Solve for x
    x = 3,990,189,665.40/73,092.64
  6. Step 6: Final answer
    x = 54,590.85

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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.