Convert from alen [Danish] to military pace [double time]

Unit Definition (alen [Danish])
The Danish Alen (also used in Norway) is slightly longer than the Scandinavian Alen. It is just longer than two feet and more precisely equal to 62.77 centimeters (24.71 inches).

Unit Definition (military pace [double time])
The length of a single step in marching (taken to be 30 inches for quick time or 36 inches for double time).