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Finding the Fourth Proportional to 36,696.70, 55,024.80 and 11,729.80

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Solution

The fourth proportional to 36,696.70, 55,024.80 and 11,729.80 is: 17,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,696.70 : 55,024.80 = 11,729.80 : x
  2. Step 2: Convert to fraction form
    36,696.70/55,024.80 = 11,729.80/x
  3. Step 3: Cross multiply
    36,696.70x = 55,024.80 × 11,729.80
  4. Step 4: Simplify right side
    36,696.70x = 645,429,899.04
  5. Step 5: Solve for x
    x = 645,429,899.04/36,696.70
  6. Step 6: Final answer
    x = 17,588.23

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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.