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Finding the Fourth Proportional to 63,789.64, 95,704.95 and 19,424.98

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Solution

The fourth proportional to 63,789.64, 95,704.95 and 19,424.98 is: 29,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,789.64 : 95,704.95 = 19,424.98 : x
  2. Step 2: Convert to fraction form
    63,789.64/95,704.95 = 19,424.98/x
  3. Step 3: Cross multiply
    63,789.64x = 95,704.95 × 19,424.98
  4. Step 4: Simplify right side
    63,789.64x = 1,859,066,739.65
  5. Step 5: Solve for x
    x = 1,859,066,739.65/63,789.64
  6. Step 6: Final answer
    x = 29,143.71

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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.