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Finding the Fourth Proportional to 11,234.80, 16,819.80 and 10,068.40

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Solution

The fourth proportional to 11,234.80, 16,819.80 and 10,068.40 is: 15,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,234.80 : 16,819.80 = 10,068.40 : x
  2. Step 2: Convert to fraction form
    11,234.80/16,819.80 = 10,068.40/x
  3. Step 3: Cross multiply
    11,234.80x = 16,819.80 × 10,068.40
  4. Step 4: Simplify right side
    11,234.80x = 169,348,474.32
  5. Step 5: Solve for x
    x = 169,348,474.32/11,234.80
  6. Step 6: Final answer
    x = 15,073.56

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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.