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Finding the Fourth Proportional to 9,906.60, 14,874.30 and 7,458.60

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Solution

The fourth proportional to 9,906.60, 14,874.30 and 7,458.60 is: 11,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.60 : 14,874.30 = 7,458.60 : x
  2. Step 2: Convert to fraction form
    9,906.60/14,874.30 = 7,458.60/x
  3. Step 3: Cross multiply
    9,906.60x = 14,874.30 × 7,458.60
  4. Step 4: Simplify right side
    9,906.60x = 110,941,453.98
  5. Step 5: Solve for x
    x = 110,941,453.98/9,906.60
  6. Step 6: Final answer
    x = 11,198.74

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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.