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Finding the Fourth Proportional to 52,745.68, 79,118.52 and 13,305.88

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Solution

The fourth proportional to 52,745.68, 79,118.52 and 13,305.88 is: 19,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,745.68 : 79,118.52 = 13,305.88 : x
  2. Step 2: Convert to fraction form
    52,745.68/79,118.52 = 13,305.88/x
  3. Step 3: Cross multiply
    52,745.68x = 79,118.52 × 13,305.88
  4. Step 4: Simplify right side
    52,745.68x = 1,052,741,532.90
  5. Step 5: Solve for x
    x = 1,052,741,532.90/52,745.68
  6. Step 6: Final answer
    x = 19,958.82

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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.