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Finding the Fourth Proportional to 1,985.82, 2,740.52 and 1,101.62

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Solution

The fourth proportional to 1,985.82, 2,740.52 and 1,101.62 is: 1,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.82 : 2,740.52 = 1,101.62 : x
  2. Step 2: Convert to fraction form
    1,985.82/2,740.52 = 1,101.62/x
  3. Step 3: Cross multiply
    1,985.82x = 2,740.52 × 1,101.62
  4. Step 4: Simplify right side
    1,985.82x = 3,018,999.64
  5. Step 5: Solve for x
    x = 3,018,999.64/1,985.82
  6. Step 6: Final answer
    x = 1,520.28

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