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Finding the Fourth Proportional to 60,592.50, 90,889.20 and 21,149.65

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Solution

The fourth proportional to 60,592.50, 90,889.20 and 21,149.65 is: 31,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,592.50 : 90,889.20 = 21,149.65 : x
  2. Step 2: Convert to fraction form
    60,592.50/90,889.20 = 21,149.65/x
  3. Step 3: Cross multiply
    60,592.50x = 90,889.20 × 21,149.65
  4. Step 4: Simplify right side
    60,592.50x = 1,922,274,541.56
  5. Step 5: Solve for x
    x = 1,922,274,541.56/60,592.50
  6. Step 6: Final answer
    x = 31,724.63

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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.