But, apply that logic to a bet made for a coin flip as I mentioned above. If a bet of $10 is made to a coin flip, the way we apply pot odds doesn't seem to work:

$10/$10=100%, which means you need 100% odds to call, but that obviously isn't right. Where is the flaw for the poker case of $25 bet into a $75 pot and the coin flip case where $10 is bet into a dry pot.