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Finding the Fourth Proportional to 79,961.99, 119,811.69 and 27,342.77

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Solution

The fourth proportional to 79,961.99, 119,811.69 and 27,342.77 is: 40,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,961.99 : 119,811.69 = 27,342.77 : x
  2. Step 2: Convert to fraction form
    79,961.99/119,811.69 = 27,342.77/x
  3. Step 3: Cross multiply
    79,961.99x = 119,811.69 × 27,342.77
  4. Step 4: Simplify right side
    79,961.99x = 3,275,982,883.92
  5. Step 5: Solve for x
    x = 3,275,982,883.92/79,961.99
  6. Step 6: Final answer
    x = 40,969.25

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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.