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Finding the Fourth Proportional to 12,604.60, 18,906.90 and 3,244.63

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Solution

The fourth proportional to 12,604.60, 18,906.90 and 3,244.63 is: 4,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.60 : 18,906.90 = 3,244.63 : x
  2. Step 2: Convert to fraction form
    12,604.60/18,906.90 = 3,244.63/x
  3. Step 3: Cross multiply
    12,604.60x = 18,906.90 × 3,244.63
  4. Step 4: Simplify right side
    12,604.60x = 61,345,894.95
  5. Step 5: Solve for x
    x = 61,345,894.95/12,604.60
  6. Step 6: Final answer
    x = 4,866.95

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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.