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Finding the Fourth Proportional to 9,268.88, 13,890.32 and 4,326.80

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Solution

The fourth proportional to 9,268.88, 13,890.32 and 4,326.80 is: 6,484.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.88 : 13,890.32 = 4,326.80 : x
  2. Step 2: Convert to fraction form
    9,268.88/13,890.32 = 4,326.80/x
  3. Step 3: Cross multiply
    9,268.88x = 13,890.32 × 4,326.80
  4. Step 4: Simplify right side
    9,268.88x = 60,100,636.58
  5. Step 5: Solve for x
    x = 60,100,636.58/9,268.88
  6. Step 6: Final answer
    x = 6,484.13

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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.