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Finding the Fourth Proportional to 6,800.14, 9,384.20 and 3,815.98

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Solution

The fourth proportional to 6,800.14, 9,384.20 and 3,815.98 is: 5,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.14 : 9,384.20 = 3,815.98 : x
  2. Step 2: Convert to fraction form
    6,800.14/9,384.20 = 3,815.98/x
  3. Step 3: Cross multiply
    6,800.14x = 9,384.20 × 3,815.98
  4. Step 4: Simplify right side
    6,800.14x = 35,809,919.52
  5. Step 5: Solve for x
    x = 35,809,919.52/6,800.14
  6. Step 6: Final answer
    x = 5,266.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.