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Finding the Fourth Proportional to 57,492.51, 86,239.14 and 20,052.44

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Solution

The fourth proportional to 57,492.51, 86,239.14 and 20,052.44 is: 30,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,492.51 : 86,239.14 = 20,052.44 : x
  2. Step 2: Convert to fraction form
    57,492.51/86,239.14 = 20,052.44/x
  3. Step 3: Cross multiply
    57,492.51x = 86,239.14 × 20,052.44
  4. Step 4: Simplify right side
    57,492.51x = 1,729,305,180.50
  5. Step 5: Solve for x
    x = 1,729,305,180.50/57,492.51
  6. Step 6: Final answer
    x = 30,078.79

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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.