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Finding the Fourth Proportional to 11,628.56, 17,440.98 and 5,052.98

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Solution

The fourth proportional to 11,628.56, 17,440.98 and 5,052.98 is: 7,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,628.56 : 17,440.98 = 5,052.98 : x
  2. Step 2: Convert to fraction form
    11,628.56/17,440.98 = 5,052.98/x
  3. Step 3: Cross multiply
    11,628.56x = 17,440.98 × 5,052.98
  4. Step 4: Simplify right side
    11,628.56x = 88,128,923.12
  5. Step 5: Solve for x
    x = 88,128,923.12/11,628.56
  6. Step 6: Final answer
    x = 7,578.66

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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.