How do I use multiple attributes from one content type to another?

I have a content type ‘people’ that includes: name, phone, and address. I have another content type ‘problem’ that includes: date, problem, resolved, etc. I am using entity reference so that when someone has a problem I can choose them from the drop down but I also want to auto-populate the other fields (phone, address) as well. I have been searching for a while and cannot find an answer.
Thank you

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