Using proportions, it is found that Jade's total yearly income was of $50,600.
A proportion is a fraction of a total amount.
In this problem, Jade's income is composed by:
Hence:
[tex]T = 18000 + 50(52) + 0.025(1200000) = 50600[/tex]
Jade's total yearly income was of $50,600.
More can be learned about proportions at https://brainly.com/question/24372153