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Finding the Fourth Proportional to 35,981.40, 53,928.90 and 18,442.20

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Solution

The fourth proportional to 35,981.40, 53,928.90 and 18,442.20 is: 27,641.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,981.40 : 53,928.90 = 18,442.20 : x
  2. Step 2: Convert to fraction form
    35,981.40/53,928.90 = 18,442.20/x
  3. Step 3: Cross multiply
    35,981.40x = 53,928.90 × 18,442.20
  4. Step 4: Simplify right side
    35,981.40x = 994,567,559.58
  5. Step 5: Solve for x
    x = 994,567,559.58/35,981.40
  6. Step 6: Final answer
    x = 27,641.16

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