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Finding the Fourth Proportional to 79,797.98, 119,701.08 and 20,634.16

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Solution

The fourth proportional to 79,797.98, 119,701.08 and 20,634.16 is: 30,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.98 : 119,701.08 = 20,634.16 : x
  2. Step 2: Convert to fraction form
    79,797.98/119,701.08 = 20,634.16/x
  3. Step 3: Cross multiply
    79,797.98x = 119,701.08 × 20,634.16
  4. Step 4: Simplify right side
    79,797.98x = 2,469,931,236.89
  5. Step 5: Solve for x
    x = 2,469,931,236.89/79,797.98
  6. Step 6: Final answer
    x = 30,952.30

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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.