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Finding the Fourth Proportional to 46,857.48, 64,686.78 and 31,829.64

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Solution

The fourth proportional to 46,857.48, 64,686.78 and 31,829.64 is: 43,940.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,857.48 : 64,686.78 = 31,829.64 : x
  2. Step 2: Convert to fraction form
    46,857.48/64,686.78 = 31,829.64/x
  3. Step 3: Cross multiply
    46,857.48x = 64,686.78 × 31,829.64
  4. Step 4: Simplify right side
    46,857.48x = 2,058,956,920.16
  5. Step 5: Solve for x
    x = 2,058,956,920.16/46,857.48
  6. Step 6: Final answer
    x = 43,940.84

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