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Finding the Fourth Proportional to 11,190.90, 16,786.35 and 9,732.90

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Solution

The fourth proportional to 11,190.90, 16,786.35 and 9,732.90 is: 14,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.90 : 16,786.35 = 9,732.90 : x
  2. Step 2: Convert to fraction form
    11,190.90/16,786.35 = 9,732.90/x
  3. Step 3: Cross multiply
    11,190.90x = 16,786.35 × 9,732.90
  4. Step 4: Simplify right side
    11,190.90x = 163,379,865.92
  5. Step 5: Solve for x
    x = 163,379,865.92/11,190.90
  6. Step 6: Final answer
    x = 14,599.35

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Similar ratio
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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.