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Finding the Fourth Proportional to 2,157.46, 3,235.50 and 696.27

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Solution

The fourth proportional to 2,157.46, 3,235.50 and 696.27 is: 1,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.46 : 3,235.50 = 696.27 : x
  2. Step 2: Convert to fraction form
    2,157.46/3,235.50 = 696.27/x
  3. Step 3: Cross multiply
    2,157.46x = 3,235.50 × 696.27
  4. Step 4: Simplify right side
    2,157.46x = 2,252,781.59
  5. Step 5: Solve for x
    x = 2,252,781.59/2,157.46
  6. Step 6: Final answer
    x = 1,044.18

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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.