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Finding the Fourth Proportional to 29,124, 40,195.80 and 16,556.40

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Solution

The fourth proportional to 29,124, 40,195.80 and 16,556.40 is: 22,850.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,124 : 40,195.80 = 16,556.40 : x
  2. Step 2: Convert to fraction form
    29,124/40,195.80 = 16,556.40/x
  3. Step 3: Cross multiply
    29,124x = 40,195.80 × 16,556.40
  4. Step 4: Simplify right side
    29,124x = 665,497,743.12
  5. Step 5: Solve for x
    x = 665,497,743.12/29,124
  6. Step 6: Final answer
    x = 22,850.49

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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.