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Finding the Fourth Proportional to 70,006.20, 105,029.64 and 22,620.30

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Solution

The fourth proportional to 70,006.20, 105,029.64 and 22,620.30 is: 33,937.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,006.20 : 105,029.64 = 22,620.30 : x
  2. Step 2: Convert to fraction form
    70,006.20/105,029.64 = 22,620.30/x
  3. Step 3: Cross multiply
    70,006.20x = 105,029.64 × 22,620.30
  4. Step 4: Simplify right side
    70,006.20x = 2,375,801,965.69
  5. Step 5: Solve for x
    x = 2,375,801,965.69/70,006.20
  6. Step 6: Final answer
    x = 33,937.02

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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.