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Finding the Fourth Proportional to 20,634.99, 30,951.07 and 9,550.55

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Solution

The fourth proportional to 20,634.99, 30,951.07 and 9,550.55 is: 14,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.99 : 30,951.07 = 9,550.55 : x
  2. Step 2: Convert to fraction form
    20,634.99/30,951.07 = 9,550.55/x
  3. Step 3: Cross multiply
    20,634.99x = 30,951.07 × 9,550.55
  4. Step 4: Simplify right side
    20,634.99x = 295,599,562.96
  5. Step 5: Solve for x
    x = 295,599,562.96/20,634.99
  6. Step 6: Final answer
    x = 14,325.16

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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.