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Finding the Fourth Proportional to 53,695.74, 80,521.05 and 20,397.42

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Solution

The fourth proportional to 53,695.74, 80,521.05 and 20,397.42 is: 30,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,695.74 : 80,521.05 = 20,397.42 : x
  2. Step 2: Convert to fraction form
    53,695.74/80,521.05 = 20,397.42/x
  3. Step 3: Cross multiply
    53,695.74x = 80,521.05 × 20,397.42
  4. Step 4: Simplify right side
    53,695.74x = 1,642,421,675.69
  5. Step 5: Solve for x
    x = 1,642,421,675.69/53,695.74
  6. Step 6: Final answer
    x = 30,587.56

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