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Finding the Fourth Proportional to 63,751.05, 95,616.14 and 18,761.88

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Solution

The fourth proportional to 63,751.05, 95,616.14 and 18,761.88 is: 28,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,751.05 : 95,616.14 = 18,761.88 : x
  2. Step 2: Convert to fraction form
    63,751.05/95,616.14 = 18,761.88/x
  3. Step 3: Cross multiply
    63,751.05x = 95,616.14 × 18,761.88
  4. Step 4: Simplify right side
    63,751.05x = 1,793,938,544.74
  5. Step 5: Solve for x
    x = 1,793,938,544.74/63,751.05
  6. Step 6: Final answer
    x = 28,139.75

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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.