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Finding the Fourth Proportional to 20,033.80, 30,050.70 and 16,145.80

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Solution

The fourth proportional to 20,033.80, 30,050.70 and 16,145.80 is: 24,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.80 : 30,050.70 = 16,145.80 : x
  2. Step 2: Convert to fraction form
    20,033.80/30,050.70 = 16,145.80/x
  3. Step 3: Cross multiply
    20,033.80x = 30,050.70 × 16,145.80
  4. Step 4: Simplify right side
    20,033.80x = 485,192,592.06
  5. Step 5: Solve for x
    x = 485,192,592.06/20,033.80
  6. Step 6: Final answer
    x = 24,218.70

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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.