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Finding the Fourth Proportional to 11,696.45, 16,135.47 and 8,504.80

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Solution

The fourth proportional to 11,696.45, 16,135.47 and 8,504.80 is: 11,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,696.45 : 16,135.47 = 8,504.80 : x
  2. Step 2: Convert to fraction form
    11,696.45/16,135.47 = 8,504.80/x
  3. Step 3: Cross multiply
    11,696.45x = 16,135.47 × 8,504.80
  4. Step 4: Simplify right side
    11,696.45x = 137,228,945.26
  5. Step 5: Solve for x
    x = 137,228,945.26/11,696.45
  6. Step 6: Final answer
    x = 11,732.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.