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Finding the Fourth Proportional to 31,283.86, 46,915.99 and 10,219.11

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Solution

The fourth proportional to 31,283.86, 46,915.99 and 10,219.11 is: 15,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,283.86 : 46,915.99 = 10,219.11 : x
  2. Step 2: Convert to fraction form
    31,283.86/46,915.99 = 10,219.11/x
  3. Step 3: Cross multiply
    31,283.86x = 46,915.99 × 10,219.11
  4. Step 4: Simplify right side
    31,283.86x = 479,439,427.99
  5. Step 5: Solve for x
    x = 479,439,427.99/31,283.86
  6. Step 6: Final answer
    x = 15,325.46

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