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Finding the Fourth Proportional to 11,313.84, 16,973.64 and 5,694.96

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Solution

The fourth proportional to 11,313.84, 16,973.64 and 5,694.96 is: 8,543.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.84 : 16,973.64 = 5,694.96 : x
  2. Step 2: Convert to fraction form
    11,313.84/16,973.64 = 5,694.96/x
  3. Step 3: Cross multiply
    11,313.84x = 16,973.64 × 5,694.96
  4. Step 4: Simplify right side
    11,313.84x = 96,664,200.85
  5. Step 5: Solve for x
    x = 96,664,200.85/11,313.84
  6. Step 6: Final answer
    x = 8,543.89

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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.