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Finding the Fourth Proportional to 63,198.57, 94,766.10 and 21,063.90

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Solution

The fourth proportional to 63,198.57, 94,766.10 and 21,063.90 is: 31,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,198.57 : 94,766.10 = 21,063.90 : x
  2. Step 2: Convert to fraction form
    63,198.57/94,766.10 = 21,063.90/x
  3. Step 3: Cross multiply
    63,198.57x = 94,766.10 × 21,063.90
  4. Step 4: Simplify right side
    63,198.57x = 1,996,143,653.79
  5. Step 5: Solve for x
    x = 1,996,143,653.79/63,198.57
  6. Step 6: Final answer
    x = 31,585.27

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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.