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Finding the Fourth Proportional to 53,191.86, 79,787.43 and 16,255.86

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Solution

The fourth proportional to 53,191.86, 79,787.43 and 16,255.86 is: 24,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,191.86 : 79,787.43 = 16,255.86 : x
  2. Step 2: Convert to fraction form
    53,191.86/79,787.43 = 16,255.86/x
  3. Step 3: Cross multiply
    53,191.86x = 79,787.43 × 16,255.86
  4. Step 4: Simplify right side
    53,191.86x = 1,297,013,291.84
  5. Step 5: Solve for x
    x = 1,297,013,291.84/53,191.86
  6. Step 6: Final answer
    x = 24,383.68

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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.