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Finding the Fourth Proportional to 31,897.34, 47,728.99 and 26,619.32

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Solution

The fourth proportional to 31,897.34, 47,728.99 and 26,619.32 is: 39,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,897.34 : 47,728.99 = 26,619.32 : x
  2. Step 2: Convert to fraction form
    31,897.34/47,728.99 = 26,619.32/x
  3. Step 3: Cross multiply
    31,897.34x = 47,728.99 × 26,619.32
  4. Step 4: Simplify right side
    31,897.34x = 1,270,513,258.09
  5. Step 5: Solve for x
    x = 1,270,513,258.09/31,897.34
  6. Step 6: Final answer
    x = 39,831.32

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