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Finding the Fourth Proportional to 57,772.88, 86,664.24 and 16,219.88

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Solution

The fourth proportional to 57,772.88, 86,664.24 and 16,219.88 is: 24,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,772.88 : 86,664.24 = 16,219.88 : x
  2. Step 2: Convert to fraction form
    57,772.88/86,664.24 = 16,219.88/x
  3. Step 3: Cross multiply
    57,772.88x = 86,664.24 × 16,219.88
  4. Step 4: Simplify right side
    57,772.88x = 1,405,683,573.09
  5. Step 5: Solve for x
    x = 1,405,683,573.09/57,772.88
  6. Step 6: Final answer
    x = 24,331.20

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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.