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Finding the Fourth Proportional to 8,540.55, 11,786.04 and 5,004.45

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Solution

The fourth proportional to 8,540.55, 11,786.04 and 5,004.45 is: 6,906.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.55 : 11,786.04 = 5,004.45 : x
  2. Step 2: Convert to fraction form
    8,540.55/11,786.04 = 5,004.45/x
  3. Step 3: Cross multiply
    8,540.55x = 11,786.04 × 5,004.45
  4. Step 4: Simplify right side
    8,540.55x = 58,982,647.88
  5. Step 5: Solve for x
    x = 58,982,647.88/8,540.55
  6. Step 6: Final answer
    x = 6,906.19

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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.