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Finding the Fourth Proportional to 8,610.54, 12,917.58 and 2,771.22

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Solution

The fourth proportional to 8,610.54, 12,917.58 and 2,771.22 is: 4,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.54 : 12,917.58 = 2,771.22 : x
  2. Step 2: Convert to fraction form
    8,610.54/12,917.58 = 2,771.22/x
  3. Step 3: Cross multiply
    8,610.54x = 12,917.58 × 2,771.22
  4. Step 4: Simplify right side
    8,610.54x = 35,797,456.05
  5. Step 5: Solve for x
    x = 35,797,456.05/8,610.54
  6. Step 6: Final answer
    x = 4,157.40

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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.