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Finding the Fourth Proportional to 42,608.48, 63,906.80 and 22,609.22

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Solution

The fourth proportional to 42,608.48, 63,906.80 and 22,609.22 is: 33,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,608.48 : 63,906.80 = 22,609.22 : x
  2. Step 2: Convert to fraction form
    42,608.48/63,906.80 = 22,609.22/x
  3. Step 3: Cross multiply
    42,608.48x = 63,906.80 × 22,609.22
  4. Step 4: Simplify right side
    42,608.48x = 1,444,882,468.12
  5. Step 5: Solve for x
    x = 1,444,882,468.12/42,608.48
  6. Step 6: Final answer
    x = 33,910.68

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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.