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Finding the Fourth Proportional to 9,883.91, 13,635.69 and 6,479.99

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Solution

The fourth proportional to 9,883.91, 13,635.69 and 6,479.99 is: 8,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.91 : 13,635.69 = 6,479.99 : x
  2. Step 2: Convert to fraction form
    9,883.91/13,635.69 = 6,479.99/x
  3. Step 3: Cross multiply
    9,883.91x = 13,635.69 × 6,479.99
  4. Step 4: Simplify right side
    9,883.91x = 88,359,134.84
  5. Step 5: Solve for x
    x = 88,359,134.84/9,883.91
  6. Step 6: Final answer
    x = 8,939.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.