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Finding the Fourth Proportional to 57,812.73, 79,712.67 and 48,266.47

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Solution

The fourth proportional to 57,812.73, 79,712.67 and 48,266.47 is: 66,550.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,812.73 : 79,712.67 = 48,266.47 : x
  2. Step 2: Convert to fraction form
    57,812.73/79,712.67 = 48,266.47/x
  3. Step 3: Cross multiply
    57,812.73x = 79,712.67 × 48,266.47
  4. Step 4: Simplify right side
    57,812.73x = 3,847,449,195.17
  5. Step 5: Solve for x
    x = 3,847,449,195.17/57,812.73
  6. Step 6: Final answer
    x = 66,550.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.