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Finding the Fourth Proportional to 14,819.54, 20,447.01 and 9,080.06

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Solution

The fourth proportional to 14,819.54, 20,447.01 and 9,080.06 is: 12,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.54 : 20,447.01 = 9,080.06 : x
  2. Step 2: Convert to fraction form
    14,819.54/20,447.01 = 9,080.06/x
  3. Step 3: Cross multiply
    14,819.54x = 20,447.01 × 9,080.06
  4. Step 4: Simplify right side
    14,819.54x = 185,659,975.39
  5. Step 5: Solve for x
    x = 185,659,975.39/14,819.54
  6. Step 6: Final answer
    x = 12,528.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.