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Finding the Fourth Proportional to 50,443.20, 75,664.80 and 15,382.80

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Solution

The fourth proportional to 50,443.20, 75,664.80 and 15,382.80 is: 23,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,443.20 : 75,664.80 = 15,382.80 : x
  2. Step 2: Convert to fraction form
    50,443.20/75,664.80 = 15,382.80/x
  3. Step 3: Cross multiply
    50,443.20x = 75,664.80 × 15,382.80
  4. Step 4: Simplify right side
    50,443.20x = 1,163,936,485.44
  5. Step 5: Solve for x
    x = 1,163,936,485.44/50,443.20
  6. Step 6: Final answer
    x = 23,074.20

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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.