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Finding the Fourth Proportional to 38,260, 57,387.72 and 17,194.60

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Solution

The fourth proportional to 38,260, 57,387.72 and 17,194.60 is: 25,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,260 : 57,387.72 = 17,194.60 : x
  2. Step 2: Convert to fraction form
    38,260/57,387.72 = 17,194.60/x
  3. Step 3: Cross multiply
    38,260x = 57,387.72 × 17,194.60
  4. Step 4: Simplify right side
    38,260x = 986,758,890.31
  5. Step 5: Solve for x
    x = 986,758,890.31/38,260
  6. Step 6: Final answer
    x = 25,790.88

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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.