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Finding the Fourth Proportional to 29,443.64, 40,623.21 and 16,694.78

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Solution

The fourth proportional to 29,443.64, 40,623.21 and 16,694.78 is: 23,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,443.64 : 40,623.21 = 16,694.78 : x
  2. Step 2: Convert to fraction form
    29,443.64/40,623.21 = 16,694.78/x
  3. Step 3: Cross multiply
    29,443.64x = 40,623.21 × 16,694.78
  4. Step 4: Simplify right side
    29,443.64x = 678,195,553.84
  5. Step 5: Solve for x
    x = 678,195,553.84/29,443.64
  6. Step 6: Final answer
    x = 23,033.69

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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.