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Finding the Fourth Proportional to 14,704.99, 20,274.97 and 12,809.59

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Solution

The fourth proportional to 14,704.99, 20,274.97 and 12,809.59 is: 17,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,704.99 : 20,274.97 = 12,809.59 : x
  2. Step 2: Convert to fraction form
    14,704.99/20,274.97 = 12,809.59/x
  3. Step 3: Cross multiply
    14,704.99x = 20,274.97 × 12,809.59
  4. Step 4: Simplify right side
    14,704.99x = 259,714,052.96
  5. Step 5: Solve for x
    x = 259,714,052.96/14,704.99
  6. Step 6: Final answer
    x = 17,661.63

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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.