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Finding the Fourth Proportional to 57,696.56, 86,555.37 and 26,531

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Solution

The fourth proportional to 57,696.56, 86,555.37 and 26,531 is: 39,801.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,696.56 : 86,555.37 = 26,531 : x
  2. Step 2: Convert to fraction form
    57,696.56/86,555.37 = 26,531/x
  3. Step 3: Cross multiply
    57,696.56x = 86,555.37 × 26,531
  4. Step 4: Simplify right side
    57,696.56x = 2,296,400,521.47
  5. Step 5: Solve for x
    x = 2,296,400,521.47/57,696.56
  6. Step 6: Final answer
    x = 39,801.34

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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.