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Finding the Fourth Proportional to 29,617.20, 40,868.04 and 17,042.76

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Solution

The fourth proportional to 29,617.20, 40,868.04 and 17,042.76 is: 23,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,617.20 : 40,868.04 = 17,042.76 : x
  2. Step 2: Convert to fraction form
    29,617.20/40,868.04 = 17,042.76/x
  3. Step 3: Cross multiply
    29,617.20x = 40,868.04 × 17,042.76
  4. Step 4: Simplify right side
    29,617.20x = 696,504,197.39
  5. Step 5: Solve for x
    x = 696,504,197.39/29,617.20
  6. Step 6: Final answer
    x = 23,516.88

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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.