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Finding the Fourth Proportional to 29,481.77, 40,682.79 and 16,735.21

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Solution

The fourth proportional to 29,481.77, 40,682.79 and 16,735.21 is: 23,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,481.77 : 40,682.79 = 16,735.21 : x
  2. Step 2: Convert to fraction form
    29,481.77/40,682.79 = 16,735.21/x
  3. Step 3: Cross multiply
    29,481.77x = 40,682.79 × 16,735.21
  4. Step 4: Simplify right side
    29,481.77x = 680,835,034.04
  5. Step 5: Solve for x
    x = 680,835,034.04/29,481.77
  6. Step 6: Final answer
    x = 23,093.42

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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.