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Finding the Fourth Proportional to 57,616.16, 86,413.28 and 18,162.68

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Solution

The fourth proportional to 57,616.16, 86,413.28 and 18,162.68 is: 27,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,616.16 : 86,413.28 = 18,162.68 : x
  2. Step 2: Convert to fraction form
    57,616.16/86,413.28 = 18,162.68/x
  3. Step 3: Cross multiply
    57,616.16x = 86,413.28 × 18,162.68
  4. Step 4: Simplify right side
    57,616.16x = 1,569,496,229.51
  5. Step 5: Solve for x
    x = 1,569,496,229.51/57,616.16
  6. Step 6: Final answer
    x = 27,240.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.