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Finding the Fourth Proportional to 60,342.10, 90,512.70 and 18,222.10

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Solution

The fourth proportional to 60,342.10, 90,512.70 and 18,222.10 is: 27,333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,342.10 : 90,512.70 = 18,222.10 : x
  2. Step 2: Convert to fraction form
    60,342.10/90,512.70 = 18,222.10/x
  3. Step 3: Cross multiply
    60,342.10x = 90,512.70 × 18,222.10
  4. Step 4: Simplify right side
    60,342.10x = 1,649,331,470.67
  5. Step 5: Solve for x
    x = 1,649,331,470.67/60,342.10
  6. Step 6: Final answer
    x = 27,333.01

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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.