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Finding the Fourth Proportional to 11,408.67, 17,113.01 and 3,616.88

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Solution

The fourth proportional to 11,408.67, 17,113.01 and 3,616.88 is: 5,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.67 : 17,113.01 = 3,616.88 : x
  2. Step 2: Convert to fraction form
    11,408.67/17,113.01 = 3,616.88/x
  3. Step 3: Cross multiply
    11,408.67x = 17,113.01 × 3,616.88
  4. Step 4: Simplify right side
    11,408.67x = 61,895,599.96
  5. Step 5: Solve for x
    x = 61,895,599.96/11,408.67
  6. Step 6: Final answer
    x = 5,425.31

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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.