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Finding the Fourth Proportional to 11,357.96, 17,039.78 and 11,169.62

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Solution

The fourth proportional to 11,357.96, 17,039.78 and 11,169.62 is: 16,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.96 : 17,039.78 = 11,169.62 : x
  2. Step 2: Convert to fraction form
    11,357.96/17,039.78 = 11,169.62/x
  3. Step 3: Cross multiply
    11,357.96x = 17,039.78 × 11,169.62
  4. Step 4: Simplify right side
    11,357.96x = 190,327,768.32
  5. Step 5: Solve for x
    x = 190,327,768.32/11,357.96
  6. Step 6: Final answer
    x = 16,757.21

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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.