excel sumproduct or index match

please help me get the result "e" in the attached example, either by sumproduct or index match.

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Using INDEX and MATCH, with an array formula in the MATCH portion, can return what you need. Paste the following into H6, and press control-shift-enter.

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byundtMechanical EngineerCommented:
You could also use LOOKUP in a formula that does not need to be array-entered:
NorieAnalyst Assistant Commented:
This appears to work but I'm sure it's not the best approach.


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Very impressive use of LOOKUP, though that comes as no surprise to me. Took me 10 minutes to wrap my head around your use of the reciprocal inverse of the vector. I had no idea it could do that. Kudos!

byundtMechanical EngineerCommented:
While you were away, we were regularly schooled by barryhoudini. That's one of his tricks, and pretty cute at that.

newparadigmzAuthor Commented:
This was, in fact, exactly what I was looking for.

While the others worked, this one was 1, not an array formula, and 2, intuitive to understand at first glance.

Thanks All!
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