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Finding the Fourth Proportional to 29,660.94, 40,931.10 and 16,231.29

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Solution

The fourth proportional to 29,660.94, 40,931.10 and 16,231.29 is: 22,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,660.94 : 40,931.10 = 16,231.29 : x
  2. Step 2: Convert to fraction form
    29,660.94/40,931.10 = 16,231.29/x
  3. Step 3: Cross multiply
    29,660.94x = 40,931.10 × 16,231.29
  4. Step 4: Simplify right side
    29,660.94x = 664,364,554.12
  5. Step 5: Solve for x
    x = 664,364,554.12/29,660.94
  6. Step 6: Final answer
    x = 22,398.63

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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.