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Finding the Fourth Proportional to 62,940.31, 86,859.83 and 34,262.33

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Solution

The fourth proportional to 62,940.31, 86,859.83 and 34,262.33 is: 47,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,940.31 : 86,859.83 = 34,262.33 : x
  2. Step 2: Convert to fraction form
    62,940.31/86,859.83 = 34,262.33/x
  3. Step 3: Cross multiply
    62,940.31x = 86,859.83 × 34,262.33
  4. Step 4: Simplify right side
    62,940.31x = 2,976,020,205.04
  5. Step 5: Solve for x
    x = 2,976,020,205.04/62,940.31
  6. Step 6: Final answer
    x = 47,283.21

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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.