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Finding the Fourth Proportional to 29,976.40, 44,891.70 and 14,375.80

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Solution

The fourth proportional to 29,976.40, 44,891.70 and 14,375.80 is: 21,528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,976.40 : 44,891.70 = 14,375.80 : x
  2. Step 2: Convert to fraction form
    29,976.40/44,891.70 = 14,375.80/x
  3. Step 3: Cross multiply
    29,976.40x = 44,891.70 × 14,375.80
  4. Step 4: Simplify right side
    29,976.40x = 645,354,100.86
  5. Step 5: Solve for x
    x = 645,354,100.86/29,976.40
  6. Step 6: Final answer
    x = 21,528.74

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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.