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Finding the Fourth Proportional to 40,496.22, 60,747.22 and 12,412.62

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Solution

The fourth proportional to 40,496.22, 60,747.22 and 12,412.62 is: 18,619.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,496.22 : 60,747.22 = 12,412.62 : x
  2. Step 2: Convert to fraction form
    40,496.22/60,747.22 = 12,412.62/x
  3. Step 3: Cross multiply
    40,496.22x = 60,747.22 × 12,412.62
  4. Step 4: Simplify right side
    40,496.22x = 754,032,157.92
  5. Step 5: Solve for x
    x = 754,032,157.92/40,496.22
  6. Step 6: Final answer
    x = 18,619.82

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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.