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Finding the Fourth Proportional to 7,140.58, 10,710.76 and 1,946.44

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Solution

The fourth proportional to 7,140.58, 10,710.76 and 1,946.44 is: 2,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.58 : 10,710.76 = 1,946.44 : x
  2. Step 2: Convert to fraction form
    7,140.58/10,710.76 = 1,946.44/x
  3. Step 3: Cross multiply
    7,140.58x = 10,710.76 × 1,946.44
  4. Step 4: Simplify right side
    7,140.58x = 20,847,851.69
  5. Step 5: Solve for x
    x = 20,847,851.69/7,140.58
  6. Step 6: Final answer
    x = 2,919.63

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