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Finding the Fourth Proportional to 6,326.88, 8,731.88 and 3,674.30

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Solution

The fourth proportional to 6,326.88, 8,731.88 and 3,674.30 is: 5,070.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326.88 : 8,731.88 = 3,674.30 : x
  2. Step 2: Convert to fraction form
    6,326.88/8,731.88 = 3,674.30/x
  3. Step 3: Cross multiply
    6,326.88x = 8,731.88 × 3,674.30
  4. Step 4: Simplify right side
    6,326.88x = 32,083,484.65
  5. Step 5: Solve for x
    x = 32,083,484.65/6,326.88
  6. Step 6: Final answer
    x = 5,070.98

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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.