How do you copy cell size along with format?

I have one large cell and I have many small cells. I Copy Style the large cell and Paste Style into all the small ones (using command key to select each one), but nothing happens, the small cells stay small. I want to make them all the same size as the large cell. How can I make that happen without manually adjusting the size of dozens of cells? FYI, the small cells are not adjacent to one another. Thanks-

Miles