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Finding the Fourth Proportional to 16,763, 25,143.68 and 5,670.12

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Solution

The fourth proportional to 16,763, 25,143.68 and 5,670.12 is: 8,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763 : 25,143.68 = 5,670.12 : x
  2. Step 2: Convert to fraction form
    16,763/25,143.68 = 5,670.12/x
  3. Step 3: Cross multiply
    16,763x = 25,143.68 × 5,670.12
  4. Step 4: Simplify right side
    16,763x = 142,567,682.84
  5. Step 5: Solve for x
    x = 142,567,682.84/16,763
  6. Step 6: Final answer
    x = 8,504.90

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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.