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Finding the Fourth Proportional to 11,490.15, 17,230.97 and 4,092.64

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Solution

The fourth proportional to 11,490.15, 17,230.97 and 4,092.64 is: 6,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.15 : 17,230.97 = 4,092.64 : x
  2. Step 2: Convert to fraction form
    11,490.15/17,230.97 = 4,092.64/x
  3. Step 3: Cross multiply
    11,490.15x = 17,230.97 × 4,092.64
  4. Step 4: Simplify right side
    11,490.15x = 70,520,136.60
  5. Step 5: Solve for x
    x = 70,520,136.60/11,490.15
  6. Step 6: Final answer
    x = 6,137.45

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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.