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Finding the Fourth Proportional to 9,978,814.95, 13,770,784.64 and 5,395,136.32

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Solution

The fourth proportional to 9,978,814.95, 13,770,784.64 and 5,395,136.32 is: 7,445,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,814.95 : 13,770,784.64 = 5,395,136.32 : x
  2. Step 2: Convert to fraction form
    9,978,814.95/13,770,784.64 = 5,395,136.32/x
  3. Step 3: Cross multiply
    9,978,814.95x = 13,770,784.64 × 5,395,136.32
  4. Step 4: Simplify right side
    9,978,814.95x = 74,295,260,366,515.80
  5. Step 5: Solve for x
    x = 74,295,260,366,515.80/9,978,814.95
  6. Step 6: Final answer
    x = 7,445,298.94

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