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Finding the Fourth Proportional to 40,104, 55,342.72 and 22,199

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Solution

The fourth proportional to 40,104, 55,342.72 and 22,199 is: 30,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,104 : 55,342.72 = 22,199 : x
  2. Step 2: Convert to fraction form
    40,104/55,342.72 = 22,199/x
  3. Step 3: Cross multiply
    40,104x = 55,342.72 × 22,199
  4. Step 4: Simplify right side
    40,104x = 1,228,553,041.28
  5. Step 5: Solve for x
    x = 1,228,553,041.28/40,104
  6. Step 6: Final answer
    x = 30,634.18

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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.