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Finding the Fourth Proportional to 62,707.88, 86,536.87 and 34,413.56

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Solution

The fourth proportional to 62,707.88, 86,536.87 and 34,413.56 is: 47,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,707.88 : 86,536.87 = 34,413.56 : x
  2. Step 2: Convert to fraction form
    62,707.88/86,536.87 = 34,413.56/x
  3. Step 3: Cross multiply
    62,707.88x = 86,536.87 × 34,413.56
  4. Step 4: Simplify right side
    62,707.88x = 2,978,041,767.96
  5. Step 5: Solve for x
    x = 2,978,041,767.96/62,707.88
  6. Step 6: Final answer
    x = 47,490.71

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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.