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Finding the Fourth Proportional to 7,066.71, 9,751.79 and 3,923.10

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Solution

The fourth proportional to 7,066.71, 9,751.79 and 3,923.10 is: 5,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066.71 : 9,751.79 = 3,923.10 : x
  2. Step 2: Convert to fraction form
    7,066.71/9,751.79 = 3,923.10/x
  3. Step 3: Cross multiply
    7,066.71x = 9,751.79 × 3,923.10
  4. Step 4: Simplify right side
    7,066.71x = 38,257,257.16
  5. Step 5: Solve for x
    x = 38,257,257.16/7,066.71
  6. Step 6: Final answer
    x = 5,413.73

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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.