5. When drying, apricots lose $10 \%$ of their mass, and grapes lose $30 \%$ of their mass. Determine the proportion in which apricots and grapes must be taken so that after drying, the mixture contains twice as much dried apricot as raisins. In your answer, indicate the ratio of the initial mass of apricots to the mass of grapes as a decimal, rounding it to two decimal places if necessary.