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Finding the Fourth Proportional to 3,696.72, 5,544.12 and 1,099.80

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Solution

The fourth proportional to 3,696.72, 5,544.12 and 1,099.80 is: 1,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,696.72 : 5,544.12 = 1,099.80 : x
  2. Step 2: Convert to fraction form
    3,696.72/5,544.12 = 1,099.80/x
  3. Step 3: Cross multiply
    3,696.72x = 5,544.12 × 1,099.80
  4. Step 4: Simplify right side
    3,696.72x = 6,097,423.18
  5. Step 5: Solve for x
    x = 6,097,423.18/3,696.72
  6. Step 6: Final answer
    x = 1,649.41

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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.