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Finding the Fourth Proportional to 25,515.72, 38,274.30 and 7,047.72

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Solution

The fourth proportional to 25,515.72, 38,274.30 and 7,047.72 is: 10,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.72 : 38,274.30 = 7,047.72 : x
  2. Step 2: Convert to fraction form
    25,515.72/38,274.30 = 7,047.72/x
  3. Step 3: Cross multiply
    25,515.72x = 38,274.30 × 7,047.72
  4. Step 4: Simplify right side
    25,515.72x = 269,746,549.60
  5. Step 5: Solve for x
    x = 269,746,549.60/25,515.72
  6. Step 6: Final answer
    x = 10,571.78

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