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Finding the Fourth Proportional to 56,087.42, 84,106.49 and 21,002.47

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Solution

The fourth proportional to 56,087.42, 84,106.49 and 21,002.47 is: 31,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,087.42 : 84,106.49 = 21,002.47 : x
  2. Step 2: Convert to fraction form
    56,087.42/84,106.49 = 21,002.47/x
  3. Step 3: Cross multiply
    56,087.42x = 84,106.49 × 21,002.47
  4. Step 4: Simplify right side
    56,087.42x = 1,766,443,717.75
  5. Step 5: Solve for x
    x = 1,766,443,717.75/56,087.42
  6. Step 6: Final answer
    x = 31,494.48

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