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Finding the Fourth Proportional to 70,589.62, 97,413.84 and 38,760.56

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Solution

The fourth proportional to 70,589.62, 97,413.84 and 38,760.56 is: 53,489.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,589.62 : 97,413.84 = 38,760.56 : x
  2. Step 2: Convert to fraction form
    70,589.62/97,413.84 = 38,760.56/x
  3. Step 3: Cross multiply
    70,589.62x = 97,413.84 × 38,760.56
  4. Step 4: Simplify right side
    70,589.62x = 3,775,814,990.15
  5. Step 5: Solve for x
    x = 3,775,814,990.15/70,589.62
  6. Step 6: Final answer
    x = 53,489.66

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1.5x scale

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.