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Finding the Fourth Proportional to 5,677.75, 7,836.38 and 3,193.75

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Solution

The fourth proportional to 5,677.75, 7,836.38 and 3,193.75 is: 4,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.75 : 7,836.38 = 3,193.75 : x
  2. Step 2: Convert to fraction form
    5,677.75/7,836.38 = 3,193.75/x
  3. Step 3: Cross multiply
    5,677.75x = 7,836.38 × 3,193.75
  4. Step 4: Simplify right side
    5,677.75x = 25,027,422.66
  5. Step 5: Solve for x
    x = 25,027,422.66/5,677.75
  6. Step 6: Final answer
    x = 4,407.98

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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.