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Finding the Fourth Proportional to 11,409.98, 17,115.01 and 3,512.44

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Solution

The fourth proportional to 11,409.98, 17,115.01 and 3,512.44 is: 5,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.98 : 17,115.01 = 3,512.44 : x
  2. Step 2: Convert to fraction form
    11,409.98/17,115.01 = 3,512.44/x
  3. Step 3: Cross multiply
    11,409.98x = 17,115.01 × 3,512.44
  4. Step 4: Simplify right side
    11,409.98x = 60,115,445.72
  5. Step 5: Solve for x
    x = 60,115,445.72/11,409.98
  6. Step 6: Final answer
    x = 5,268.67

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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.