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Finding the Fourth Proportional to 19,841.43, 29,761.97 and 5,990.43

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Solution

The fourth proportional to 19,841.43, 29,761.97 and 5,990.43 is: 8,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.43 : 29,761.97 = 5,990.43 : x
  2. Step 2: Convert to fraction form
    19,841.43/29,761.97 = 5,990.43/x
  3. Step 3: Cross multiply
    19,841.43x = 29,761.97 × 5,990.43
  4. Step 4: Simplify right side
    19,841.43x = 178,286,967.99
  5. Step 5: Solve for x
    x = 178,286,967.99/19,841.43
  6. Step 6: Final answer
    x = 8,985.59

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1.5x scale

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.