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Finding the Fourth Proportional to 62,620.49, 86,413.14 and 35,395.98

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Solution

The fourth proportional to 62,620.49, 86,413.14 and 35,395.98 is: 48,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,620.49 : 86,413.14 = 35,395.98 : x
  2. Step 2: Convert to fraction form
    62,620.49/86,413.14 = 35,395.98/x
  3. Step 3: Cross multiply
    62,620.49x = 86,413.14 × 35,395.98
  4. Step 4: Simplify right side
    62,620.49x = 3,058,677,775.18
  5. Step 5: Solve for x
    x = 3,058,677,775.18/62,620.49
  6. Step 6: Final answer
    x = 48,844.68

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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.