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Finding the Fourth Proportional to 16,763, 25,145.10 and 4,451

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Solution

The fourth proportional to 16,763, 25,145.10 and 4,451 is: 6,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763 : 25,145.10 = 4,451 : x
  2. Step 2: Convert to fraction form
    16,763/25,145.10 = 4,451/x
  3. Step 3: Cross multiply
    16,763x = 25,145.10 × 4,451
  4. Step 4: Simplify right side
    16,763x = 111,920,840.10
  5. Step 5: Solve for x
    x = 111,920,840.10/16,763
  6. Step 6: Final answer
    x = 6,676.66

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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.