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Finding the Fourth Proportional to 1,996.56, 2,995.20 and 1,023.12

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Solution

The fourth proportional to 1,996.56, 2,995.20 and 1,023.12 is: 1,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.56 : 2,995.20 = 1,023.12 : x
  2. Step 2: Convert to fraction form
    1,996.56/2,995.20 = 1,023.12/x
  3. Step 3: Cross multiply
    1,996.56x = 2,995.20 × 1,023.12
  4. Step 4: Simplify right side
    1,996.56x = 3,064,449.02
  5. Step 5: Solve for x
    x = 3,064,449.02/1,996.56
  6. Step 6: Final answer
    x = 1,534.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.