The biological family of the New York realtor who died in Sunday’s “ghost plane” crash revealed to The Post on Tuesday how she randomly met her late-in-life adoptive parents and why she touchingly bonded with them.

Adina Azarian, 49, a top real-estate agent in East Hampton and Manhattan, was adopted nine years ago, at age 40, by business magnate John Rumple and his wife Barbara — after an accidental meeting, said her half-brother Steven White, 57.