The word proportionals is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 21
Highest Scoring Words With Friends™ Plays In The Letters proportionals
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Seven Letter Word Alert: (37 words)
airport, appoint, laptops, lotions, nostril, ooplast, options, oration, orators, parlors, parrots, parsnip, patrols, patrons, platoon, plosion, polaron, poplars, poplins, portals, portion, potions, protons, rapport, raptors, rations, ripstop, rostral, soprano, sporont, tailors, toprail, topsail, topsoil, topspin, torpors, torsion