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Finding the Fourth Proportional to 29,789.80, 41,107.35 and 17,040.40

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Solution

The fourth proportional to 29,789.80, 41,107.35 and 17,040.40 is: 23,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,789.80 : 41,107.35 = 17,040.40 : x
  2. Step 2: Convert to fraction form
    29,789.80/41,107.35 = 17,040.40/x
  3. Step 3: Cross multiply
    29,789.80x = 41,107.35 × 17,040.40
  4. Step 4: Simplify right side
    29,789.80x = 700,485,686.94
  5. Step 5: Solve for x
    x = 700,485,686.94/29,789.80
  6. Step 6: Final answer
    x = 23,514.28

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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.