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Finding the Fourth Proportional to 17,208.28, 25,813.82 and 6,687

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Solution

The fourth proportional to 17,208.28, 25,813.82 and 6,687 is: 10,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,208.28 : 25,813.82 = 6,687 : x
  2. Step 2: Convert to fraction form
    17,208.28/25,813.82 = 6,687/x
  3. Step 3: Cross multiply
    17,208.28x = 25,813.82 × 6,687
  4. Step 4: Simplify right side
    17,208.28x = 172,617,014.34
  5. Step 5: Solve for x
    x = 172,617,014.34/17,208.28
  6. Step 6: Final answer
    x = 10,031.04

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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.