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Finding the Fourth Proportional to 57,274.92, 85,924.71 and 17,290.55

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Solution

The fourth proportional to 57,274.92, 85,924.71 and 17,290.55 is: 25,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,274.92 : 85,924.71 = 17,290.55 : x
  2. Step 2: Convert to fraction form
    57,274.92/85,924.71 = 17,290.55/x
  3. Step 3: Cross multiply
    57,274.92x = 85,924.71 × 17,290.55
  4. Step 4: Simplify right side
    57,274.92x = 1,485,685,709.30
  5. Step 5: Solve for x
    x = 1,485,685,709.30/57,274.92
  6. Step 6: Final answer
    x = 25,939.55

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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.