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Finding the Fourth Proportional to 9,315.86, 13,973.97 and 7,458.35

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Solution

The fourth proportional to 9,315.86, 13,973.97 and 7,458.35 is: 11,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.86 : 13,973.97 = 7,458.35 : x
  2. Step 2: Convert to fraction form
    9,315.86/13,973.97 = 7,458.35/x
  3. Step 3: Cross multiply
    9,315.86x = 13,973.97 × 7,458.35
  4. Step 4: Simplify right side
    9,315.86x = 104,222,759.15
  5. Step 5: Solve for x
    x = 104,222,759.15/9,315.86
  6. Step 6: Final answer
    x = 11,187.67

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