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Finding the Fourth Proportional to 3,696.70, 5,093.70 and 2,515.72

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Solution

The fourth proportional to 3,696.70, 5,093.70 and 2,515.72 is: 3,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,696.70 : 5,093.70 = 2,515.72 : x
  2. Step 2: Convert to fraction form
    3,696.70/5,093.70 = 2,515.72/x
  3. Step 3: Cross multiply
    3,696.70x = 5,093.70 × 2,515.72
  4. Step 4: Simplify right side
    3,696.70x = 12,814,322.96
  5. Step 5: Solve for x
    x = 12,814,322.96/3,696.70
  6. Step 6: Final answer
    x = 3,466.42

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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.