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Scalability is a critical aspect of system design, especially when it comes to handling increased loads. To design a scalable system, you need to consider the scalability requirements and analyze the current system's capacity. Let's go through the process step by step:

1. Determine the scalability requirements: Begin by estimating the expected number of ____ and ___ per second.

2. Analyze the current system: Assess the current system's capacity in terms of the number of __ and ____ per second.

3. Calculate the growth factor: Determine the growth factor by dividing the expected number of users by the current number of users. In this case, the growth factor is _.

4. Calculate the required resources: Multiply the current resources (requests per second) by the growth factor to calculate the required resources for handling the increased loads. Based on the example, the required number of requests per second is ____, and the number of servers required is ___.

5. Design the system architecture: To handle the increased loads, consider increasing the number of servers, implementing load balancing to distribute traffic, optimizing database queries and indexing, and using caching to reduce database load.