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Finding the Fourth Proportional to 40,104, 55,344.69 and 22,200.66

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Solution

The fourth proportional to 40,104, 55,344.69 and 22,200.66 is: 30,637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,104 : 55,344.69 = 22,200.66 : x
  2. Step 2: Convert to fraction form
    40,104/55,344.69 = 22,200.66/x
  3. Step 3: Cross multiply
    40,104x = 55,344.69 × 22,200.66
  4. Step 4: Simplify right side
    40,104x = 1,228,688,645.50
  5. Step 5: Solve for x
    x = 1,228,688,645.50/40,104
  6. Step 6: Final answer
    x = 30,637.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.