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Finding the Fourth Proportional to 16,745.91, 25,118.85 and 6,878.25

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Solution

The fourth proportional to 16,745.91, 25,118.85 and 6,878.25 is: 10,317.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,745.91 : 25,118.85 = 6,878.25 : x
  2. Step 2: Convert to fraction form
    16,745.91/25,118.85 = 6,878.25/x
  3. Step 3: Cross multiply
    16,745.91x = 25,118.85 × 6,878.25
  4. Step 4: Simplify right side
    16,745.91x = 172,773,730.01
  5. Step 5: Solve for x
    x = 172,773,730.01/16,745.91
  6. Step 6: Final answer
    x = 10,317.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.