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Finding the Fourth Proportional to 10,721.53, 16,054.59 and 7,400.03

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Solution

The fourth proportional to 10,721.53, 16,054.59 and 7,400.03 is: 11,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.53 : 16,054.59 = 7,400.03 : x
  2. Step 2: Convert to fraction form
    10,721.53/16,054.59 = 7,400.03/x
  3. Step 3: Cross multiply
    10,721.53x = 16,054.59 × 7,400.03
  4. Step 4: Simplify right side
    10,721.53x = 118,804,447.64
  5. Step 5: Solve for x
    x = 118,804,447.64/10,721.53
  6. Step 6: Final answer
    x = 11,080.92

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