Felisa is creating a scrapbook of her family. A photo of her grandmother measures 3 inches by 5 inches. She enlarges it by a scale factor of 1.5 to place in the scrapbook. Then she enlarges the second photo by a scale factor of 1.5 to place on the cover of the scrapbook. What are the dimensions of the photo for the cover of the scrapbook? Are all the photos similar?