Solve the following proportion. 
a = __________
Definitions:
Two-step flow
A communication model that suggests information from the media moves in two distinct stages - first to "opinion leaders," who then pass it on to a wider audience.
Communication
The process of conveying information and meaning between individuals or groups through the use of verbally or nonverbally conveyed symbols.
Mass media
Channels of communication that disseminate information, entertainment, and educational content to large and diverse audiences across various platforms.
Popular films
Movies that gain a substantial following and widespread appeal among the general public.
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