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Finding the Fourth Proportional to 11,053.05, 16,583.54 and 5,505.90

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Solution

The fourth proportional to 11,053.05, 16,583.54 and 5,505.90 is: 8,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,053.05 : 16,583.54 = 5,505.90 : x
  2. Step 2: Convert to fraction form
    11,053.05/16,583.54 = 5,505.90/x
  3. Step 3: Cross multiply
    11,053.05x = 16,583.54 × 5,505.90
  4. Step 4: Simplify right side
    11,053.05x = 91,307,285.36
  5. Step 5: Solve for x
    x = 91,307,285.36/11,053.05
  6. Step 6: Final answer
    x = 8,260.82

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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.