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Finding the Fourth Proportional to 16,917, 25,375.56 and 4,605

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Solution

The fourth proportional to 16,917, 25,375.56 and 4,605 is: 6,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917 : 25,375.56 = 4,605 : x
  2. Step 2: Convert to fraction form
    16,917/25,375.56 = 4,605/x
  3. Step 3: Cross multiply
    16,917x = 25,375.56 × 4,605
  4. Step 4: Simplify right side
    16,917x = 116,854,453.80
  5. Step 5: Solve for x
    x = 116,854,453.80/16,917
  6. Step 6: Final answer
    x = 6,907.52

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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.