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Finding the Fourth Proportional to 62,884.54, 86,781.81 and 34,204.78

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Solution

The fourth proportional to 62,884.54, 86,781.81 and 34,204.78 is: 47,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,884.54 : 86,781.81 = 34,204.78 : x
  2. Step 2: Convert to fraction form
    62,884.54/86,781.81 = 34,204.78/x
  3. Step 3: Cross multiply
    62,884.54x = 86,781.81 × 34,204.78
  4. Step 4: Simplify right side
    62,884.54x = 2,968,352,719.05
  5. Step 5: Solve for x
    x = 2,968,352,719.05/62,884.54
  6. Step 6: Final answer
    x = 47,203.22

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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.