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Finding the Fourth Proportional to 8,615.18, 12,922.84 and 2,375.54

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Solution

The fourth proportional to 8,615.18, 12,922.84 and 2,375.54 is: 3,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.18 : 12,922.84 = 2,375.54 : x
  2. Step 2: Convert to fraction form
    8,615.18/12,922.84 = 2,375.54/x
  3. Step 3: Cross multiply
    8,615.18x = 12,922.84 × 2,375.54
  4. Step 4: Simplify right side
    8,615.18x = 30,698,723.33
  5. Step 5: Solve for x
    x = 30,698,723.33/8,615.18
  6. Step 6: Final answer
    x = 3,563.33

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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.