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Finding the Fourth Proportional to 10,653.35, 15,986.10 and 7,368.80

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Solution

The fourth proportional to 10,653.35, 15,986.10 and 7,368.80 is: 11,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.35 : 15,986.10 = 7,368.80 : x
  2. Step 2: Convert to fraction form
    10,653.35/15,986.10 = 7,368.80/x
  3. Step 3: Cross multiply
    10,653.35x = 15,986.10 × 7,368.80
  4. Step 4: Simplify right side
    10,653.35x = 117,798,373.68
  5. Step 5: Solve for x
    x = 117,798,373.68/10,653.35
  6. Step 6: Final answer
    x = 11,057.40

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