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Finding the Fourth Proportional to 62,707.84, 86,538.30 and 34,413.50

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Solution

The fourth proportional to 62,707.84, 86,538.30 and 34,413.50 is: 47,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,707.84 : 86,538.30 = 34,413.50 : x
  2. Step 2: Convert to fraction form
    62,707.84/86,538.30 = 34,413.50/x
  3. Step 3: Cross multiply
    62,707.84x = 86,538.30 × 34,413.50
  4. Step 4: Simplify right side
    62,707.84x = 2,978,085,787.05
  5. Step 5: Solve for x
    x = 2,978,085,787.05/62,707.84
  6. Step 6: Final answer
    x = 47,491.44

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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.