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Finding the Fourth Proportional to 30,793.80, 46,179.90 and 15,997.80

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Solution

The fourth proportional to 30,793.80, 46,179.90 and 15,997.80 is: 23,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,793.80 : 46,179.90 = 15,997.80 : x
  2. Step 2: Convert to fraction form
    30,793.80/46,179.90 = 15,997.80/x
  3. Step 3: Cross multiply
    30,793.80x = 46,179.90 × 15,997.80
  4. Step 4: Simplify right side
    30,793.80x = 738,776,804.22
  5. Step 5: Solve for x
    x = 738,776,804.22/30,793.80
  6. Step 6: Final answer
    x = 23,991.09

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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.