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Finding the Fourth Proportional to 29,314.95, 43,971.82 and 7,128.45

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Solution

The fourth proportional to 29,314.95, 43,971.82 and 7,128.45 is: 10,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,314.95 : 43,971.82 = 7,128.45 : x
  2. Step 2: Convert to fraction form
    29,314.95/43,971.82 = 7,128.45/x
  3. Step 3: Cross multiply
    29,314.95x = 43,971.82 × 7,128.45
  4. Step 4: Simplify right side
    29,314.95x = 313,450,920.28
  5. Step 5: Solve for x
    x = 313,450,920.28/29,314.95
  6. Step 6: Final answer
    x = 10,692.53

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