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Finding the Fourth Proportional to 1,980.82, 2,965.76 and 1,492.39

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Solution

The fourth proportional to 1,980.82, 2,965.76 and 1,492.39 is: 2,234.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.82 : 2,965.76 = 1,492.39 : x
  2. Step 2: Convert to fraction form
    1,980.82/2,965.76 = 1,492.39/x
  3. Step 3: Cross multiply
    1,980.82x = 2,965.76 × 1,492.39
  4. Step 4: Simplify right side
    1,980.82x = 4,426,070.57
  5. Step 5: Solve for x
    x = 4,426,070.57/1,980.82
  6. Step 6: Final answer
    x = 2,234.46

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