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Finding the Fourth Proportional to 57,521.25, 86,289.18 and 15,968.25

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Solution

The fourth proportional to 57,521.25, 86,289.18 and 15,968.25 is: 23,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,521.25 : 86,289.18 = 15,968.25 : x
  2. Step 2: Convert to fraction form
    57,521.25/86,289.18 = 15,968.25/x
  3. Step 3: Cross multiply
    57,521.25x = 86,289.18 × 15,968.25
  4. Step 4: Simplify right side
    57,521.25x = 1,377,887,198.54
  5. Step 5: Solve for x
    x = 1,377,887,198.54/57,521.25
  6. Step 6: Final answer
    x = 23,954.40

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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.