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Finding the Fourth Proportional to 19,375.20, 29,021.48 and 9,364.82

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Solution

The fourth proportional to 19,375.20, 29,021.48 and 9,364.82 is: 14,027.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.20 : 29,021.48 = 9,364.82 : x
  2. Step 2: Convert to fraction form
    19,375.20/29,021.48 = 9,364.82/x
  3. Step 3: Cross multiply
    19,375.20x = 29,021.48 × 9,364.82
  4. Step 4: Simplify right side
    19,375.20x = 271,780,936.33
  5. Step 5: Solve for x
    x = 271,780,936.33/19,375.20
  6. Step 6: Final answer
    x = 14,027.26

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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.