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Finding the Fourth Proportional to 53,051.22, 79,574.76 and 17,990.91

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Solution

The fourth proportional to 53,051.22, 79,574.76 and 17,990.91 is: 26,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,051.22 : 79,574.76 = 17,990.91 : x
  2. Step 2: Convert to fraction form
    53,051.22/79,574.76 = 17,990.91/x
  3. Step 3: Cross multiply
    53,051.22x = 79,574.76 × 17,990.91
  4. Step 4: Simplify right side
    53,051.22x = 1,431,622,345.43
  5. Step 5: Solve for x
    x = 1,431,622,345.43/53,051.22
  6. Step 6: Final answer
    x = 26,985.66

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