The question asks for a sequence of numbers where you "Add 16" each time. Starting from the given 27:

1. First number: $27 + 16 = 43$
2. The sequence becomes: $27, 43, 59, 75$.

The missing number is 43.

Would you like further explanation or examples?

Expanding Questions:

1. How can you identify arithmetic sequences?
2. What happens if you subtract instead of adding 16 in the sequence?
3. Can you find the nth term of an arithmetic sequence like this one?
4. What is the sum of all numbers in this sequence?
5. How does this sequence differ from a geometric sequence?

Tip: Always verify your steps in sequences by applying the rule consistently.