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Finding the Fourth Proportional to 51,993.12, 71,747.28 and 29,335.68

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Solution

The fourth proportional to 51,993.12, 71,747.28 and 29,335.68 is: 40,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,993.12 : 71,747.28 = 29,335.68 : x
  2. Step 2: Convert to fraction form
    51,993.12/71,747.28 = 29,335.68/x
  3. Step 3: Cross multiply
    51,993.12x = 71,747.28 × 29,335.68
  4. Step 4: Simplify right side
    51,993.12x = 2,104,755,246.95
  5. Step 5: Solve for x
    x = 2,104,755,246.95/51,993.12
  6. Step 6: Final answer
    x = 40,481.42

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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.