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Finding the Fourth Proportional to 11,129.91, 16,713.96 and 9,883.32

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Solution

The fourth proportional to 11,129.91, 16,713.96 and 9,883.32 is: 14,841.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.91 : 16,713.96 = 9,883.32 : x
  2. Step 2: Convert to fraction form
    11,129.91/16,713.96 = 9,883.32/x
  3. Step 3: Cross multiply
    11,129.91x = 16,713.96 × 9,883.32
  4. Step 4: Simplify right side
    11,129.91x = 165,189,415.15
  5. Step 5: Solve for x
    x = 165,189,415.15/11,129.91
  6. Step 6: Final answer
    x = 14,841.94

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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.