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Finding the Fourth Proportional to 54,524.60, 81,786.90 and 36,809.90

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Solution

The fourth proportional to 54,524.60, 81,786.90 and 36,809.90 is: 55,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,524.60 : 81,786.90 = 36,809.90 : x
  2. Step 2: Convert to fraction form
    54,524.60/81,786.90 = 36,809.90/x
  3. Step 3: Cross multiply
    54,524.60x = 81,786.90 × 36,809.90
  4. Step 4: Simplify right side
    54,524.60x = 3,010,567,610.31
  5. Step 5: Solve for x
    x = 3,010,567,610.31/54,524.60
  6. Step 6: Final answer
    x = 55,214.85

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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.