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Finding the Fourth Proportional to 29,687.28, 40,973.08 and 16,940.44

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Solution

The fourth proportional to 29,687.28, 40,973.08 and 16,940.44 is: 23,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,687.28 : 40,973.08 = 16,940.44 : x
  2. Step 2: Convert to fraction form
    29,687.28/40,973.08 = 16,940.44/x
  3. Step 3: Cross multiply
    29,687.28x = 40,973.08 × 16,940.44
  4. Step 4: Simplify right side
    29,687.28x = 694,102,003.36
  5. Step 5: Solve for x
    x = 694,102,003.36/29,687.28
  6. Step 6: Final answer
    x = 23,380.45

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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.