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Finding the Fourth Proportional to 79,622.31, 119,451.92 and 27,031.80

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Solution

The fourth proportional to 79,622.31, 119,451.92 and 27,031.80 is: 40,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,622.31 : 119,451.92 = 27,031.80 : x
  2. Step 2: Convert to fraction form
    79,622.31/119,451.92 = 27,031.80/x
  3. Step 3: Cross multiply
    79,622.31x = 119,451.92 × 27,031.80
  4. Step 4: Simplify right side
    79,622.31x = 3,229,000,411.06
  5. Step 5: Solve for x
    x = 3,229,000,411.06/79,622.31
  6. Step 6: Final answer
    x = 40,553.97

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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.