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Finding the Fourth Proportional to 33,815.20, 50,722.80 and 16,280.80

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Solution

The fourth proportional to 33,815.20, 50,722.80 and 16,280.80 is: 24,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,815.20 : 50,722.80 = 16,280.80 : x
  2. Step 2: Convert to fraction form
    33,815.20/50,722.80 = 16,280.80/x
  3. Step 3: Cross multiply
    33,815.20x = 50,722.80 × 16,280.80
  4. Step 4: Simplify right side
    33,815.20x = 825,807,762.24
  5. Step 5: Solve for x
    x = 825,807,762.24/33,815.20
  6. Step 6: Final answer
    x = 24,421.20

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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.