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Finding the Fourth Proportional to 55,395.88, 83,093.82 and 13,842.88

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Solution

The fourth proportional to 55,395.88, 83,093.82 and 13,842.88 is: 20,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,395.88 : 83,093.82 = 13,842.88 : x
  2. Step 2: Convert to fraction form
    55,395.88/83,093.82 = 13,842.88/x
  3. Step 3: Cross multiply
    55,395.88x = 83,093.82 × 13,842.88
  4. Step 4: Simplify right side
    55,395.88x = 1,150,257,779.00
  5. Step 5: Solve for x
    x = 1,150,257,779.00/55,395.88
  6. Step 6: Final answer
    x = 20,764.32

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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.