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Finding the Fourth Proportional to 53,818.88, 80,739.94 and 16,381.88

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Solution

The fourth proportional to 53,818.88, 80,739.94 and 16,381.88 is: 24,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,818.88 : 80,739.94 = 16,381.88 : x
  2. Step 2: Convert to fraction form
    53,818.88/80,739.94 = 16,381.88/x
  3. Step 3: Cross multiply
    53,818.88x = 80,739.94 × 16,381.88
  4. Step 4: Simplify right side
    53,818.88x = 1,322,672,008.29
  5. Step 5: Solve for x
    x = 1,322,672,008.29/53,818.88
  6. Step 6: Final answer
    x = 24,576.36

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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.