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Finding the Fourth Proportional to 57,994.57, 86,967.24 and 20,564.07

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Solution

The fourth proportional to 57,994.57, 86,967.24 and 20,564.07 is: 30,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,994.57 : 86,967.24 = 20,564.07 : x
  2. Step 2: Convert to fraction form
    57,994.57/86,967.24 = 20,564.07/x
  3. Step 3: Cross multiply
    57,994.57x = 86,967.24 × 20,564.07
  4. Step 4: Simplify right side
    57,994.57x = 1,788,400,007.82
  5. Step 5: Solve for x
    x = 1,788,400,007.82/57,994.57
  6. Step 6: Final answer
    x = 30,837.37

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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.