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Finding the Fourth Proportional to 2,991.57, 4,484.46 and 1,675.96

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Solution

The fourth proportional to 2,991.57, 4,484.46 and 1,675.96 is: 2,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.57 : 4,484.46 = 1,675.96 : x
  2. Step 2: Convert to fraction form
    2,991.57/4,484.46 = 1,675.96/x
  3. Step 3: Cross multiply
    2,991.57x = 4,484.46 × 1,675.96
  4. Step 4: Simplify right side
    2,991.57x = 7,515,795.88
  5. Step 5: Solve for x
    x = 7,515,795.88/2,991.57
  6. Step 6: Final answer
    x = 2,512.32

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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.