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Finding the Fourth Proportional to 6,798.60, 10,198.14 and 2,181

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Solution

The fourth proportional to 6,798.60, 10,198.14 and 2,181 is: 3,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,798.60 : 10,198.14 = 2,181 : x
  2. Step 2: Convert to fraction form
    6,798.60/10,198.14 = 2,181/x
  3. Step 3: Cross multiply
    6,798.60x = 10,198.14 × 2,181
  4. Step 4: Simplify right side
    6,798.60x = 22,242,143.34
  5. Step 5: Solve for x
    x = 22,242,143.34/6,798.60
  6. Step 6: Final answer
    x = 3,271.58

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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.