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Finding the Fourth Proportional to 68,632.95, 94,708.88 and 38,413.11

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Solution

The fourth proportional to 68,632.95, 94,708.88 and 38,413.11 is: 53,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,632.95 : 94,708.88 = 38,413.11 : x
  2. Step 2: Convert to fraction form
    68,632.95/94,708.88 = 38,413.11/x
  3. Step 3: Cross multiply
    68,632.95x = 94,708.88 × 38,413.11
  4. Step 4: Simplify right side
    68,632.95x = 3,638,062,433.35
  5. Step 5: Solve for x
    x = 3,638,062,433.35/68,632.95
  6. Step 6: Final answer
    x = 53,007.52

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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.