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Finding the Fourth Proportional to 2,197.88, 3,297.16 and 736.70

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Solution

The fourth proportional to 2,197.88, 3,297.16 and 736.70 is: 1,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.88 : 3,297.16 = 736.70 : x
  2. Step 2: Convert to fraction form
    2,197.88/3,297.16 = 736.70/x
  3. Step 3: Cross multiply
    2,197.88x = 3,297.16 × 736.70
  4. Step 4: Simplify right side
    2,197.88x = 2,429,017.77
  5. Step 5: Solve for x
    x = 2,429,017.77/2,197.88
  6. Step 6: Final answer
    x = 1,105.16

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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.