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Finding the Fourth Proportional to 57,451.68, 79,274.16 and 34,786.80

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Solution

The fourth proportional to 57,451.68, 79,274.16 and 34,786.80 is: 48,000.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,451.68 : 79,274.16 = 34,786.80 : x
  2. Step 2: Convert to fraction form
    57,451.68/79,274.16 = 34,786.80/x
  3. Step 3: Cross multiply
    57,451.68x = 79,274.16 × 34,786.80
  4. Step 4: Simplify right side
    57,451.68x = 2,757,694,349.09
  5. Step 5: Solve for x
    x = 2,757,694,349.09/57,451.68
  6. Step 6: Final answer
    x = 48,000.24

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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.