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Finding the Fourth Proportional to 11,202.99, 15,453.69 and 7,003.95

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Solution

The fourth proportional to 11,202.99, 15,453.69 and 7,003.95 is: 9,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.99 : 15,453.69 = 7,003.95 : x
  2. Step 2: Convert to fraction form
    11,202.99/15,453.69 = 7,003.95/x
  3. Step 3: Cross multiply
    11,202.99x = 15,453.69 × 7,003.95
  4. Step 4: Simplify right side
    11,202.99x = 108,236,872.08
  5. Step 5: Solve for x
    x = 108,236,872.08/11,202.99
  6. Step 6: Final answer
    x = 9,661.43

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Why These Related Problems?

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