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Finding the Fourth Proportional to 63,327.80, 95,010.72 and 18,956

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Solution

The fourth proportional to 63,327.80, 95,010.72 and 18,956 is: 28,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,327.80 : 95,010.72 = 18,956 : x
  2. Step 2: Convert to fraction form
    63,327.80/95,010.72 = 18,956/x
  3. Step 3: Cross multiply
    63,327.80x = 95,010.72 × 18,956
  4. Step 4: Simplify right side
    63,327.80x = 1,801,023,208.32
  5. Step 5: Solve for x
    x = 1,801,023,208.32/63,327.80
  6. Step 6: Final answer
    x = 28,439.69

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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.