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Finding the Fourth Proportional to 12,366,939.60, 18,550,409.40 and 10,382,893.20

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Solution

The fourth proportional to 12,366,939.60, 18,550,409.40 and 10,382,893.20 is: 15,574,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366,939.60 : 18,550,409.40 = 10,382,893.20 : x
  2. Step 2: Convert to fraction form
    12,366,939.60/18,550,409.40 = 10,382,893.20/x
  3. Step 3: Cross multiply
    12,366,939.60x = 18,550,409.40 × 10,382,893.20
  4. Step 4: Simplify right side
    12,366,939.60x = 192,606,919,616,476.06
  5. Step 5: Solve for x
    x = 192,606,919,616,476.06/12,366,939.60
  6. Step 6: Final answer
    x = 15,574,339.80

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