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Finding the Fourth Proportional to 13,994.56, 19,311.76 and 7,705.76

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Solution

The fourth proportional to 13,994.56, 19,311.76 and 7,705.76 is: 10,633.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.56 : 19,311.76 = 7,705.76 : x
  2. Step 2: Convert to fraction form
    13,994.56/19,311.76 = 7,705.76/x
  3. Step 3: Cross multiply
    13,994.56x = 19,311.76 × 7,705.76
  4. Step 4: Simplify right side
    13,994.56x = 148,811,787.74
  5. Step 5: Solve for x
    x = 148,811,787.74/13,994.56
  6. Step 6: Final answer
    x = 10,633.55

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