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Finding the Fourth Proportional to 29,481.87, 40,678.66 and 17,542.88

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Solution

The fourth proportional to 29,481.87, 40,678.66 and 17,542.88 is: 24,205.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,481.87 : 40,678.66 = 17,542.88 : x
  2. Step 2: Convert to fraction form
    29,481.87/40,678.66 = 17,542.88/x
  3. Step 3: Cross multiply
    29,481.87x = 40,678.66 × 17,542.88
  4. Step 4: Simplify right side
    29,481.87x = 713,620,723.34
  5. Step 5: Solve for x
    x = 713,620,723.34/29,481.87
  6. Step 6: Final answer
    x = 24,205.41

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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.