In patients suffering from asthma, the thickness of the airway walls increases. This thickening results in a reduction of the local shear modulus of the airways by as much as 50% compared to the airways of a healthy person. In a particular person, the local shear modulus is reduced by 21%. Assume that the frictional force due to the air flowing through the airways of this person during an asthma attack increases by a factor of 2.3 over that of a healthy person. Calculate the ratio of the shear strain on this person's airway to that of a healthy airway. r =