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Finding the Fourth Proportional to 62,791.47, 86,552.46 and 49,339.58

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Solution

The fourth proportional to 62,791.47, 86,552.46 and 49,339.58 is: 68,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,791.47 : 86,552.46 = 49,339.58 : x
  2. Step 2: Convert to fraction form
    62,791.47/86,552.46 = 49,339.58/x
  3. Step 3: Cross multiply
    62,791.47x = 86,552.46 × 49,339.58
  4. Step 4: Simplify right side
    62,791.47x = 4,270,461,591.60
  5. Step 5: Solve for x
    x = 4,270,461,591.60/62,791.47
  6. Step 6: Final answer
    x = 68,010.22

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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.