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Finding the Fourth Proportional to 31,128.53, 46,693.11 and 8,941.86

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Solution

The fourth proportional to 31,128.53, 46,693.11 and 8,941.86 is: 13,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,128.53 : 46,693.11 = 8,941.86 : x
  2. Step 2: Convert to fraction form
    31,128.53/46,693.11 = 8,941.86/x
  3. Step 3: Cross multiply
    31,128.53x = 46,693.11 × 8,941.86
  4. Step 4: Simplify right side
    31,128.53x = 417,523,252.58
  5. Step 5: Solve for x
    x = 417,523,252.58/31,128.53
  6. Step 6: Final answer
    x = 13,412.88

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