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Finding the Fourth Proportional to 57,290.70, 85,967.37 and 22,231.74

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Solution

The fourth proportional to 57,290.70, 85,967.37 and 22,231.74 is: 33,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,290.70 : 85,967.37 = 22,231.74 : x
  2. Step 2: Convert to fraction form
    57,290.70/85,967.37 = 22,231.74/x
  3. Step 3: Cross multiply
    57,290.70x = 85,967.37 × 22,231.74
  4. Step 4: Simplify right side
    57,290.70x = 1,911,204,218.32
  5. Step 5: Solve for x
    x = 1,911,204,218.32/57,290.70
  6. Step 6: Final answer
    x = 33,359.76

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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.