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Finding the Fourth Proportional to 29,676.80, 40,958.82 and 17,108.84

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Solution

The fourth proportional to 29,676.80, 40,958.82 and 17,108.84 is: 23,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,676.80 : 40,958.82 = 17,108.84 : x
  2. Step 2: Convert to fraction form
    29,676.80/40,958.82 = 17,108.84/x
  3. Step 3: Cross multiply
    29,676.80x = 40,958.82 × 17,108.84
  4. Step 4: Simplify right side
    29,676.80x = 700,757,897.97
  5. Step 5: Solve for x
    x = 700,757,897.97/29,676.80
  6. Step 6: Final answer
    x = 23,612.99

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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.