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Finding the Fourth Proportional to 65,516.96, 90,413.70 and 37,224.20

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Solution

The fourth proportional to 65,516.96, 90,413.70 and 37,224.20 is: 51,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,516.96 : 90,413.70 = 37,224.20 : x
  2. Step 2: Convert to fraction form
    65,516.96/90,413.70 = 37,224.20/x
  3. Step 3: Cross multiply
    65,516.96x = 90,413.70 × 37,224.20
  4. Step 4: Simplify right side
    65,516.96x = 3,365,577,651.54
  5. Step 5: Solve for x
    x = 3,365,577,651.54/65,516.96
  6. Step 6: Final answer
    x = 51,369.56

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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.