Miles are a measure of distance and acres a measure of area so your question really has no answer. However if you meant how many SQUARE miles in 48419 acres the answer is ~75.65
Also happens to be the exact size of Arcadia Park.
1600 acres=2.5 square miles
There are 512 acres in 0.8 square miles.
99,000 acres = 154.6875 sq miles.
2,800 Acres = 4.375 Square Miles
200,000 acres is 312.5 square miles.
1000 acres = 1.5625 sq miles.
Answer: 133,103 acres = 207.973 mi²
Answer: 44 acres = 0.06875 mi²
Answer: 880 acres = 1.375 mi²
Answer: 1300 acres = 2.03125 mi²
1 square mile = 640 acres, 14,000 acres = 21.875 sq miles
Answer: 2800 acres = 4.375 mi²