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Finding the Fourth Proportional to 29,369.39, 40,520.11 and 16,621.31

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Solution

The fourth proportional to 29,369.39, 40,520.11 and 16,621.31 is: 22,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,369.39 : 40,520.11 = 16,621.31 : x
  2. Step 2: Convert to fraction form
    29,369.39/40,520.11 = 16,621.31/x
  3. Step 3: Cross multiply
    29,369.39x = 40,520.11 × 16,621.31
  4. Step 4: Simplify right side
    29,369.39x = 673,497,096.56
  5. Step 5: Solve for x
    x = 673,497,096.56/29,369.39
  6. Step 6: Final answer
    x = 22,931.94

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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.