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Finding the Fourth Proportional to 4,931.11, 7,397.05 and 1,644.20

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Solution

The fourth proportional to 4,931.11, 7,397.05 and 1,644.20 is: 2,466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.11 : 7,397.05 = 1,644.20 : x
  2. Step 2: Convert to fraction form
    4,931.11/7,397.05 = 1,644.20/x
  3. Step 3: Cross multiply
    4,931.11x = 7,397.05 × 1,644.20
  4. Step 4: Simplify right side
    4,931.11x = 12,162,243.99
  5. Step 5: Solve for x
    x = 12,162,243.99/4,931.11
  6. Step 6: Final answer
    x = 2,466.43

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