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Finding the Fourth Proportional to 5,075.76, 7,612.96 and 1,788.56

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Solution

The fourth proportional to 5,075.76, 7,612.96 and 1,788.56 is: 2,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.76 : 7,612.96 = 1,788.56 : x
  2. Step 2: Convert to fraction form
    5,075.76/7,612.96 = 1,788.56/x
  3. Step 3: Cross multiply
    5,075.76x = 7,612.96 × 1,788.56
  4. Step 4: Simplify right side
    5,075.76x = 13,616,235.74
  5. Step 5: Solve for x
    x = 13,616,235.74/5,075.76
  6. Step 6: Final answer
    x = 2,682.60

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