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Finding the Fourth Proportional to 3,897.96, 5,839.62 and 1,951.53

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Solution

The fourth proportional to 3,897.96, 5,839.62 and 1,951.53 is: 2,923.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.96 : 5,839.62 = 1,951.53 : x
  2. Step 2: Convert to fraction form
    3,897.96/5,839.62 = 1,951.53/x
  3. Step 3: Cross multiply
    3,897.96x = 5,839.62 × 1,951.53
  4. Step 4: Simplify right side
    3,897.96x = 11,396,193.62
  5. Step 5: Solve for x
    x = 11,396,193.62/3,897.96
  6. Step 6: Final answer
    x = 2,923.63

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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.