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Finding the Fourth Proportional to 9,993.60, 14,992.20 and 4,150.80

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Solution

The fourth proportional to 9,993.60, 14,992.20 and 4,150.80 is: 6,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.60 : 14,992.20 = 4,150.80 : x
  2. Step 2: Convert to fraction form
    9,993.60/14,992.20 = 4,150.80/x
  3. Step 3: Cross multiply
    9,993.60x = 14,992.20 × 4,150.80
  4. Step 4: Simplify right side
    9,993.60x = 62,229,623.76
  5. Step 5: Solve for x
    x = 62,229,623.76/9,993.60
  6. Step 6: Final answer
    x = 6,226.95

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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.