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Finding the Fourth Proportional to 16,617.21, 24,929.88 and 4,930.44

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Solution

The fourth proportional to 16,617.21, 24,929.88 and 4,930.44 is: 7,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,617.21 : 24,929.88 = 4,930.44 : x
  2. Step 2: Convert to fraction form
    16,617.21/24,929.88 = 4,930.44/x
  3. Step 3: Cross multiply
    16,617.21x = 24,929.88 × 4,930.44
  4. Step 4: Simplify right side
    16,617.21x = 122,915,277.55
  5. Step 5: Solve for x
    x = 122,915,277.55/16,617.21
  6. Step 6: Final answer
    x = 7,396.87

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1.5x scale

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.