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Finding the Fourth Proportional to 6,991.95, 10,491.57 and 2,835.03

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Solution

The fourth proportional to 6,991.95, 10,491.57 and 2,835.03 is: 4,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.95 : 10,491.57 = 2,835.03 : x
  2. Step 2: Convert to fraction form
    6,991.95/10,491.57 = 2,835.03/x
  3. Step 3: Cross multiply
    6,991.95x = 10,491.57 × 2,835.03
  4. Step 4: Simplify right side
    6,991.95x = 29,743,915.70
  5. Step 5: Solve for x
    x = 29,743,915.70/6,991.95
  6. Step 6: Final answer
    x = 4,254.02

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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.