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Finding the Fourth Proportional to 48,612.80, 72,757.20 and 35,247.80

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Solution

The fourth proportional to 48,612.80, 72,757.20 and 35,247.80 is: 52,754.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,612.80 : 72,757.20 = 35,247.80 : x
  2. Step 2: Convert to fraction form
    48,612.80/72,757.20 = 35,247.80/x
  3. Step 3: Cross multiply
    48,612.80x = 72,757.20 × 35,247.80
  4. Step 4: Simplify right side
    48,612.80x = 2,564,531,234.16
  5. Step 5: Solve for x
    x = 2,564,531,234.16/48,612.80
  6. Step 6: Final answer
    x = 52,754.24

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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.