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Finding the Fourth Proportional to 57,480.93, 86,221.43 and 15,927.93

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Solution

The fourth proportional to 57,480.93, 86,221.43 and 15,927.93 is: 23,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480.93 : 86,221.43 = 15,927.93 : x
  2. Step 2: Convert to fraction form
    57,480.93/86,221.43 = 15,927.93/x
  3. Step 3: Cross multiply
    57,480.93x = 86,221.43 × 15,927.93
  4. Step 4: Simplify right side
    57,480.93x = 1,373,328,821.90
  5. Step 5: Solve for x
    x = 1,373,328,821.90/57,480.93
  6. Step 6: Final answer
    x = 23,891.90

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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.