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Finding the Fourth Proportional to 9,771.69, 14,658.75 and 3,196.11

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Solution

The fourth proportional to 9,771.69, 14,658.75 and 3,196.11 is: 4,794.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771.69 : 14,658.75 = 3,196.11 : x
  2. Step 2: Convert to fraction form
    9,771.69/14,658.75 = 3,196.11/x
  3. Step 3: Cross multiply
    9,771.69x = 14,658.75 × 3,196.11
  4. Step 4: Simplify right side
    9,771.69x = 46,850,977.46
  5. Step 5: Solve for x
    x = 46,850,977.46/9,771.69
  6. Step 6: Final answer
    x = 4,794.56

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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.