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Finding the Fourth Proportional to 29,008.11, 40,043.84 and 18,414.03

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Solution

The fourth proportional to 29,008.11, 40,043.84 and 18,414.03 is: 25,419.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,008.11 : 40,043.84 = 18,414.03 : x
  2. Step 2: Convert to fraction form
    29,008.11/40,043.84 = 18,414.03/x
  3. Step 3: Cross multiply
    29,008.11x = 40,043.84 × 18,414.03
  4. Step 4: Simplify right side
    29,008.11x = 737,368,379.01
  5. Step 5: Solve for x
    x = 737,368,379.01/29,008.11
  6. Step 6: Final answer
    x = 25,419.39

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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.