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Finding the Fourth Proportional to 79,682.78, 119,449.92 and 27,056.28

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Solution

The fourth proportional to 79,682.78, 119,449.92 and 27,056.28 is: 40,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,682.78 : 119,449.92 = 27,056.28 : x
  2. Step 2: Convert to fraction form
    79,682.78/119,449.92 = 27,056.28/x
  3. Step 3: Cross multiply
    79,682.78x = 119,449.92 × 27,056.28
  4. Step 4: Simplify right side
    79,682.78x = 3,231,870,481.50
  5. Step 5: Solve for x
    x = 3,231,870,481.50/79,682.78
  6. Step 6: Final answer
    x = 40,559.21

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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.