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Finding the Fourth Proportional to 7,266.08, 10,900.20 and 2,648

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Solution

The fourth proportional to 7,266.08, 10,900.20 and 2,648 is: 3,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,266.08 : 10,900.20 = 2,648 : x
  2. Step 2: Convert to fraction form
    7,266.08/10,900.20 = 2,648/x
  3. Step 3: Cross multiply
    7,266.08x = 10,900.20 × 2,648
  4. Step 4: Simplify right side
    7,266.08x = 28,863,729.60
  5. Step 5: Solve for x
    x = 28,863,729.60/7,266.08
  6. Step 6: Final answer
    x = 3,972.39

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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.