Genesis 41:32

And the doubling of Pharaoh’s dream means that the thing is fixed by God , and God will shortly bring it about .

The reason the dream was given to Pharaoh in two forms is that the matter has been firmly decided by God, and God will do it soon.

And for that the dream was doubled unto Pharaoh twice; it is because the thing is established by God, and God will shortly bring it to pass.