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Finding the Fourth Proportional to 14,994.60, 22,481.10 and 8,422.80

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Solution

The fourth proportional to 14,994.60, 22,481.10 and 8,422.80 is: 12,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,994.60 : 22,481.10 = 8,422.80 : x
  2. Step 2: Convert to fraction form
    14,994.60/22,481.10 = 8,422.80/x
  3. Step 3: Cross multiply
    14,994.60x = 22,481.10 × 8,422.80
  4. Step 4: Simplify right side
    14,994.60x = 189,353,809.08
  5. Step 5: Solve for x
    x = 189,353,809.08/14,994.60
  6. Step 6: Final answer
    x = 12,628.13

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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.