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Finding the Fourth Proportional to 20,828,892.80, 31,248,004.80 and 8,048,259.20

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Solution

The fourth proportional to 20,828,892.80, 31,248,004.80 and 8,048,259.20 is: 12,074,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,892.80 : 31,248,004.80 = 8,048,259.20 : x
  2. Step 2: Convert to fraction form
    20,828,892.80/31,248,004.80 = 8,048,259.20/x
  3. Step 3: Cross multiply
    20,828,892.80x = 31,248,004.80 × 8,048,259.20
  4. Step 4: Simplify right side
    20,828,892.80x = 251,492,042,113,244.16
  5. Step 5: Solve for x
    x = 251,492,042,113,244.16/20,828,892.80
  6. Step 6: Final answer
    x = 12,074,191.58

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