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Finding the Fourth Proportional to 6,975.92, 9,626.78 and 3,789.16

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Solution

The fourth proportional to 6,975.92, 9,626.78 and 3,789.16 is: 5,229.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.92 : 9,626.78 = 3,789.16 : x
  2. Step 2: Convert to fraction form
    6,975.92/9,626.78 = 3,789.16/x
  3. Step 3: Cross multiply
    6,975.92x = 9,626.78 × 3,789.16
  4. Step 4: Simplify right side
    6,975.92x = 36,477,409.70
  5. Step 5: Solve for x
    x = 36,477,409.70/6,975.92
  6. Step 6: Final answer
    x = 5,229.05

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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.