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Finding the Fourth Proportional to 29,449.28, 40,629.12 and 17,513.12

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Solution

The fourth proportional to 29,449.28, 40,629.12 and 17,513.12 is: 24,161.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,449.28 : 40,629.12 = 17,513.12 : x
  2. Step 2: Convert to fraction form
    29,449.28/40,629.12 = 17,513.12/x
  3. Step 3: Cross multiply
    29,449.28x = 40,629.12 × 17,513.12
  4. Step 4: Simplify right side
    29,449.28x = 711,542,654.05
  5. Step 5: Solve for x
    x = 711,542,654.05/29,449.28
  6. Step 6: Final answer
    x = 24,161.63

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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.