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Finding the Fourth Proportional to 47,369.20, 71,086.20 and 26,309.20

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Solution

The fourth proportional to 47,369.20, 71,086.20 and 26,309.20 is: 39,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,369.20 : 71,086.20 = 26,309.20 : x
  2. Step 2: Convert to fraction form
    47,369.20/71,086.20 = 26,309.20/x
  3. Step 3: Cross multiply
    47,369.20x = 71,086.20 × 26,309.20
  4. Step 4: Simplify right side
    47,369.20x = 1,870,221,053.04
  5. Step 5: Solve for x
    x = 1,870,221,053.04/47,369.20
  6. Step 6: Final answer
    x = 39,481.80

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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.