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Finding the Fourth Proportional to 90,512.92, 135,788.88 and 27,327.80

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Solution

The fourth proportional to 90,512.92, 135,788.88 and 27,327.80 is: 40,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,512.92 : 135,788.88 = 27,327.80 : x
  2. Step 2: Convert to fraction form
    90,512.92/135,788.88 = 27,327.80/x
  3. Step 3: Cross multiply
    90,512.92x = 135,788.88 × 27,327.80
  4. Step 4: Simplify right side
    90,512.92x = 3,710,811,354.86
  5. Step 5: Solve for x
    x = 3,710,811,354.86/90,512.92
  6. Step 6: Final answer
    x = 40,997.59

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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.