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Finding the Fourth Proportional to 63,162.44, 94,721.42 and 21,031.08

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Solution

The fourth proportional to 63,162.44, 94,721.42 and 21,031.08 is: 31,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,162.44 : 94,721.42 = 21,031.08 : x
  2. Step 2: Convert to fraction form
    63,162.44/94,721.42 = 21,031.08/x
  3. Step 3: Cross multiply
    63,162.44x = 94,721.42 × 21,031.08
  4. Step 4: Simplify right side
    63,162.44x = 1,992,093,761.73
  5. Step 5: Solve for x
    x = 1,992,093,761.73/63,162.44
  6. Step 6: Final answer
    x = 31,539.21

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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.