CREATE TABLE table_38008 ("Unit" TEXT, "Russian" TEXT, "Ratio" TEXT, "Metric value" TEXT, "Avoirdupois value" TEXT)

What Ratio has a Unit of zolotnik?
SELECT "Ratio" FROM table_38008 WHERE "Unit" = 'zolotnik'
SELECT "Ratio" FROM "table_38008" WHERE "Unit" = 'zolotnik'