Formula to return TRUE if Criteria Matches?

The reason I am posting this question is that combining Index and Match functions only searches for first qualifying row from top-down and I am needing to find next row up from current that matches as part of my formula.

The complete formula I am trying to construct is to return TRUE in cell "C4" if equal to the row that has the lowest value in column "A" from just above a value (nonblank) in column "C" to just before numbers in column "B" go above 55. So in this case, it would return TRUE in cell "C4" because for the blue highlighted area value 28.28 is lowest in column "A".

Secondarily not sure if INDIRECT function is best to use since I have a few hundred of these in my sheet. Is this a resource hog when I need these to calculate quickly???

I have it posted here and am posting it here because I am trying to get this to work in Sheets which I know is often different than Excel.

https://answers.microsoft.com/en-us/msoffice/forum/msoffice_excel-mso_win10-mso_2016/formula-to-return-true-if-criteria-matches/02834e93-c29f-449d-ace0-98722c399e63?tm=1568399215380