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Finding the Fourth Proportional to 6,907.55, 10,361.21 and 1,976.54

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Solution

The fourth proportional to 6,907.55, 10,361.21 and 1,976.54 is: 2,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,907.55 : 10,361.21 = 1,976.54 : x
  2. Step 2: Convert to fraction form
    6,907.55/10,361.21 = 1,976.54/x
  3. Step 3: Cross multiply
    6,907.55x = 10,361.21 × 1,976.54
  4. Step 4: Simplify right side
    6,907.55x = 20,479,284.32
  5. Step 5: Solve for x
    x = 20,479,284.32/6,907.55
  6. Step 6: Final answer
    x = 2,964.77

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Similar ratio
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1.5x scale

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.