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Finding the Fourth Proportional to 48,673.70, 72,970.05 and 20,615.30

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Solution

The fourth proportional to 48,673.70, 72,970.05 and 20,615.30 is: 30,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,673.70 : 72,970.05 = 20,615.30 : x
  2. Step 2: Convert to fraction form
    48,673.70/72,970.05 = 20,615.30/x
  3. Step 3: Cross multiply
    48,673.70x = 72,970.05 × 20,615.30
  4. Step 4: Simplify right side
    48,673.70x = 1,504,299,471.77
  5. Step 5: Solve for x
    x = 1,504,299,471.77/48,673.70
  6. Step 6: Final answer
    x = 30,905.80

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