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Finding the Fourth Proportional to 39,676.50, 54,760.05 and 22,919.22

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Solution

The fourth proportional to 39,676.50, 54,760.05 and 22,919.22 is: 31,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,676.50 : 54,760.05 = 22,919.22 : x
  2. Step 2: Convert to fraction form
    39,676.50/54,760.05 = 22,919.22/x
  3. Step 3: Cross multiply
    39,676.50x = 54,760.05 × 22,919.22
  4. Step 4: Simplify right side
    39,676.50x = 1,255,057,633.16
  5. Step 5: Solve for x
    x = 1,255,057,633.16/39,676.50
  6. Step 6: Final answer
    x = 31,632.27

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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.