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Finding the Fourth Proportional to 50,908.80, 76,363.20 and 48,187.20

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Solution

The fourth proportional to 50,908.80, 76,363.20 and 48,187.20 is: 72,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,908.80 : 76,363.20 = 48,187.20 : x
  2. Step 2: Convert to fraction form
    50,908.80/76,363.20 = 48,187.20/x
  3. Step 3: Cross multiply
    50,908.80x = 76,363.20 × 48,187.20
  4. Step 4: Simplify right side
    50,908.80x = 3,679,728,791.04
  5. Step 5: Solve for x
    x = 3,679,728,791.04/50,908.80
  6. Step 6: Final answer
    x = 72,280.80

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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.