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Finding the Fourth Proportional to 68,632.84, 94,708.93 and 38,413.08

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Solution

The fourth proportional to 68,632.84, 94,708.93 and 38,413.08 is: 53,007.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,632.84 : 94,708.93 = 38,413.08 : x
  2. Step 2: Convert to fraction form
    68,632.84/94,708.93 = 38,413.08/x
  3. Step 3: Cross multiply
    68,632.84x = 94,708.93 × 38,413.08
  4. Step 4: Simplify right side
    68,632.84x = 3,638,061,704.80
  5. Step 5: Solve for x
    x = 3,638,061,704.80/68,632.84
  6. Step 6: Final answer
    x = 53,007.59

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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.