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Finding the Fourth Proportional to 18,898.92, 26,069.04 and 11,819.52

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Solution

The fourth proportional to 18,898.92, 26,069.04 and 11,819.52 is: 16,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.92 : 26,069.04 = 11,819.52 : x
  2. Step 2: Convert to fraction form
    18,898.92/26,069.04 = 11,819.52/x
  3. Step 3: Cross multiply
    18,898.92x = 26,069.04 × 11,819.52
  4. Step 4: Simplify right side
    18,898.92x = 308,123,539.66
  5. Step 5: Solve for x
    x = 308,123,539.66/18,898.92
  6. Step 6: Final answer
    x = 16,303.76

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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.