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Finding the Fourth Proportional to 63,805.82, 95,713.16 and 21,668.72

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Solution

The fourth proportional to 63,805.82, 95,713.16 and 21,668.72 is: 32,504.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,805.82 : 95,713.16 = 21,668.72 : x
  2. Step 2: Convert to fraction form
    63,805.82/95,713.16 = 21,668.72/x
  3. Step 3: Cross multiply
    63,805.82x = 95,713.16 × 21,668.72
  4. Step 4: Simplify right side
    63,805.82x = 2,073,981,077.45
  5. Step 5: Solve for x
    x = 2,073,981,077.45/63,805.82
  6. Step 6: Final answer
    x = 32,504.58

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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.