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Finding the Fourth Proportional to 57,448.70, 86,172.92 and 27,371.64

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Solution

The fourth proportional to 57,448.70, 86,172.92 and 27,371.64 is: 41,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,448.70 : 86,172.92 = 27,371.64 : x
  2. Step 2: Convert to fraction form
    57,448.70/86,172.92 = 27,371.64/x
  3. Step 3: Cross multiply
    57,448.70x = 86,172.92 × 27,371.64
  4. Step 4: Simplify right side
    57,448.70x = 2,358,693,860.13
  5. Step 5: Solve for x
    x = 2,358,693,860.13/57,448.70
  6. Step 6: Final answer
    x = 41,057.39

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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.