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Finding the Fourth Proportional to 13,649.58, 18,836.35 and 7,681.14

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Solution

The fourth proportional to 13,649.58, 18,836.35 and 7,681.14 is: 10,599.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.58 : 18,836.35 = 7,681.14 : x
  2. Step 2: Convert to fraction form
    13,649.58/18,836.35 = 7,681.14/x
  3. Step 3: Cross multiply
    13,649.58x = 18,836.35 × 7,681.14
  4. Step 4: Simplify right side
    13,649.58x = 144,684,622.24
  5. Step 5: Solve for x
    x = 144,684,622.24/13,649.58
  6. Step 6: Final answer
    x = 10,599.93

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