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Finding the Fourth Proportional to 18,039.76, 24,893.24 and 10,080.88

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Solution

The fourth proportional to 18,039.76, 24,893.24 and 10,080.88 is: 13,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.76 : 24,893.24 = 10,080.88 : x
  2. Step 2: Convert to fraction form
    18,039.76/24,893.24 = 10,080.88/x
  3. Step 3: Cross multiply
    18,039.76x = 24,893.24 × 10,080.88
  4. Step 4: Simplify right side
    18,039.76x = 250,945,765.25
  5. Step 5: Solve for x
    x = 250,945,765.25/18,039.76
  6. Step 6: Final answer
    x = 13,910.70

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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.