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Finding the Fourth Proportional to 79,969.16, 119,873.46 and 27,342.66

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Solution

The fourth proportional to 79,969.16, 119,873.46 and 27,342.66 is: 40,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,969.16 : 119,873.46 = 27,342.66 : x
  2. Step 2: Convert to fraction form
    79,969.16/119,873.46 = 27,342.66/x
  3. Step 3: Cross multiply
    79,969.16x = 119,873.46 × 27,342.66
  4. Step 4: Simplify right side
    79,969.16x = 3,277,659,259.80
  5. Step 5: Solve for x
    x = 3,277,659,259.80/79,969.16
  6. Step 6: Final answer
    x = 40,986.54

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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.