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Finding the Fourth Proportional to 48,476.80, 72,715.20 and 33,731.20

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Solution

The fourth proportional to 48,476.80, 72,715.20 and 33,731.20 is: 50,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,476.80 : 72,715.20 = 33,731.20 : x
  2. Step 2: Convert to fraction form
    48,476.80/72,715.20 = 33,731.20/x
  3. Step 3: Cross multiply
    48,476.80x = 72,715.20 × 33,731.20
  4. Step 4: Simplify right side
    48,476.80x = 2,452,770,954.24
  5. Step 5: Solve for x
    x = 2,452,770,954.24/48,476.80
  6. Step 6: Final answer
    x = 50,596.80

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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.