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Finding the Fourth Proportional to 9,778.82, 13,496.50 and 5,801.32

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Solution

The fourth proportional to 9,778.82, 13,496.50 and 5,801.32 is: 8,006.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778.82 : 13,496.50 = 5,801.32 : x
  2. Step 2: Convert to fraction form
    9,778.82/13,496.50 = 5,801.32/x
  3. Step 3: Cross multiply
    9,778.82x = 13,496.50 × 5,801.32
  4. Step 4: Simplify right side
    9,778.82x = 78,297,515.38
  5. Step 5: Solve for x
    x = 78,297,515.38/9,778.82
  6. Step 6: Final answer
    x = 8,006.85

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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.