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Finding the Fourth Proportional to 11,141.85, 16,712.16 and 3,745.55

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Solution

The fourth proportional to 11,141.85, 16,712.16 and 3,745.55 is: 5,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.85 : 16,712.16 = 3,745.55 : x
  2. Step 2: Convert to fraction form
    11,141.85/16,712.16 = 3,745.55/x
  3. Step 3: Cross multiply
    11,141.85x = 16,712.16 × 3,745.55
  4. Step 4: Simplify right side
    11,141.85x = 62,596,147.33
  5. Step 5: Solve for x
    x = 62,596,147.33/11,141.85
  6. Step 6: Final answer
    x = 5,618.11

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1.5x scale

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.