How to Fix - Average of values in every 5th column?

Average of values in every 5th column

First thank you for your help.
I'm trying to sum the values in every fifth column and then find the average of these numbers.
I can get the sum of the numbers by using SUMPRODUCT(--(MOD(COLUMN(I4:IV4),5)=MOD(COLUMN($I$3),5)),(I4:IV4)) but cannot get the
average of these cells.
Is this possible to do?
Thank you
Joe

Anwsers to the Problem Average of values in every 5th column

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Hi,
try
SUMPRODUCT(--(MOD(COLUMN(I4:IV4),5)=MOD(COLUMN($I$3),5)),(I4:IV4)) /SUMPRODUCT(--(MOD(COLUMN(I4:IV4),5)=MOD(COLUMN($I$3),5)))

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