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Finding the Fourth Proportional to 11,161.58, 16,751.58 and 5,616.50

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Solution

The fourth proportional to 11,161.58, 16,751.58 and 5,616.50 is: 8,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.58 : 16,751.58 = 5,616.50 : x
  2. Step 2: Convert to fraction form
    11,161.58/16,751.58 = 5,616.50/x
  3. Step 3: Cross multiply
    11,161.58x = 16,751.58 × 5,616.50
  4. Step 4: Simplify right side
    11,161.58x = 94,085,249.07
  5. Step 5: Solve for x
    x = 94,085,249.07/11,161.58
  6. Step 6: Final answer
    x = 8,429.38

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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.