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Finding the Fourth Proportional to 50,621.60, 69,350.44 and 48,728.54

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Solution

The fourth proportional to 50,621.60, 69,350.44 and 48,728.54 is: 66,756.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,621.60 : 69,350.44 = 48,728.54 : x
  2. Step 2: Convert to fraction form
    50,621.60/69,350.44 = 48,728.54/x
  3. Step 3: Cross multiply
    50,621.60x = 69,350.44 × 48,728.54
  4. Step 4: Simplify right side
    50,621.60x = 3,379,345,689.56
  5. Step 5: Solve for x
    x = 3,379,345,689.56/50,621.60
  6. Step 6: Final answer
    x = 66,756.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.