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Finding the Fourth Proportional to 19,978,980.90, 29,956,335.63 and 7,833,893.64

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Solution

The fourth proportional to 19,978,980.90, 29,956,335.63 and 7,833,893.64 is: 11,746,081.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,980.90 : 29,956,335.63 = 7,833,893.64 : x
  2. Step 2: Convert to fraction form
    19,978,980.90/29,956,335.63 = 7,833,893.64/x
  3. Step 3: Cross multiply
    19,978,980.90x = 29,956,335.63 × 7,833,893.64
  4. Step 4: Simplify right side
    19,978,980.90x = 234,674,747,169,562.38
  5. Step 5: Solve for x
    x = 234,674,747,169,562.38/19,978,980.90
  6. Step 6: Final answer
    x = 11,746,081.96

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Why These Related Problems?

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