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Finding the Fourth Proportional to 6,978.32, 10,467.64 and 2,361.36

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Solution

The fourth proportional to 6,978.32, 10,467.64 and 2,361.36 is: 3,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,978.32 : 10,467.64 = 2,361.36 : x
  2. Step 2: Convert to fraction form
    6,978.32/10,467.64 = 2,361.36/x
  3. Step 3: Cross multiply
    6,978.32x = 10,467.64 × 2,361.36
  4. Step 4: Simplify right side
    6,978.32x = 24,717,866.39
  5. Step 5: Solve for x
    x = 24,717,866.39/6,978.32
  6. Step 6: Final answer
    x = 3,542.09

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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.