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Finding the Fourth Proportional to 10,805.69, 16,208.52 and 3,410.88

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Solution

The fourth proportional to 10,805.69, 16,208.52 and 3,410.88 is: 5,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,805.69 : 16,208.52 = 3,410.88 : x
  2. Step 2: Convert to fraction form
    10,805.69/16,208.52 = 3,410.88/x
  3. Step 3: Cross multiply
    10,805.69x = 16,208.52 × 3,410.88
  4. Step 4: Simplify right side
    10,805.69x = 55,285,316.70
  5. Step 5: Solve for x
    x = 55,285,316.70/10,805.69
  6. Step 6: Final answer
    x = 5,116.32

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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.