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Finding the Fourth Proportional to 60,592.32, 90,930 and 21,149.44

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Solution

The fourth proportional to 60,592.32, 90,930 and 21,149.44 is: 31,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,592.32 : 90,930 = 21,149.44 : x
  2. Step 2: Convert to fraction form
    60,592.32/90,930 = 21,149.44/x
  3. Step 3: Cross multiply
    60,592.32x = 90,930 × 21,149.44
  4. Step 4: Simplify right side
    60,592.32x = 1,923,118,579.20
  5. Step 5: Solve for x
    x = 1,923,118,579.20/60,592.32
  6. Step 6: Final answer
    x = 31,738.65

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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.