Complex sentence: The significance of this effect is proportional to the square of the width of the tank or compartment, so two baffles separating the area into thirds will reduce the displacement of the centre of gravity of the fluid by a factor of 9.
Split into simpler sentences: The significance of this effect is proportional to the square of the width of the tank or compartment. Two baffles separating the area into thirds will reduce the displacement of the centre of gravity of the fluid by a factor of 9.