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Finding the Fourth Proportional to 6,361.07, 8,780.60 and 4,786.43

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Solution

The fourth proportional to 6,361.07, 8,780.60 and 4,786.43 is: 6,607.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.07 : 8,780.60 = 4,786.43 : x
  2. Step 2: Convert to fraction form
    6,361.07/8,780.60 = 4,786.43/x
  3. Step 3: Cross multiply
    6,361.07x = 8,780.60 × 4,786.43
  4. Step 4: Simplify right side
    6,361.07x = 42,027,695.32
  5. Step 5: Solve for x
    x = 42,027,695.32/6,361.07
  6. Step 6: Final answer
    x = 6,607.02

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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.