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Finding the Fourth Proportional to 52,751.04, 79,138.08 and 21,589.44

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Solution

The fourth proportional to 52,751.04, 79,138.08 and 21,589.44 is: 32,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,751.04 : 79,138.08 = 21,589.44 : x
  2. Step 2: Convert to fraction form
    52,751.04/79,138.08 = 21,589.44/x
  3. Step 3: Cross multiply
    52,751.04x = 79,138.08 × 21,589.44
  4. Step 4: Simplify right side
    52,751.04x = 1,708,546,829.88
  5. Step 5: Solve for x
    x = 1,708,546,829.88/52,751.04
  6. Step 6: Final answer
    x = 32,388.87

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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.