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Finding the Fourth Proportional to 79,796.98, 119,699.58 and 20,633.16

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Solution

The fourth proportional to 79,796.98, 119,699.58 and 20,633.16 is: 30,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,796.98 : 119,699.58 = 20,633.16 : x
  2. Step 2: Convert to fraction form
    79,796.98/119,699.58 = 20,633.16/x
  3. Step 3: Cross multiply
    79,796.98x = 119,699.58 × 20,633.16
  4. Step 4: Simplify right side
    79,796.98x = 2,469,780,586.07
  5. Step 5: Solve for x
    x = 2,469,780,586.07/79,796.98
  6. Step 6: Final answer
    x = 30,950.80

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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.