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Finding the Fourth Proportional to 29,468.43, 40,669.16 and 18,145.44

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Solution

The fourth proportional to 29,468.43, 40,669.16 and 18,145.44 is: 25,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,468.43 : 40,669.16 = 18,145.44 : x
  2. Step 2: Convert to fraction form
    29,468.43/40,669.16 = 18,145.44/x
  3. Step 3: Cross multiply
    29,468.43x = 40,669.16 × 18,145.44
  4. Step 4: Simplify right side
    29,468.43x = 737,959,711.90
  5. Step 5: Solve for x
    x = 737,959,711.90/29,468.43
  6. Step 6: Final answer
    x = 25,042.38

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1.5x scale

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.