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Finding the Fourth Proportional to 67,260.88, 92,820.01 and 38,982.97

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Solution

The fourth proportional to 67,260.88, 92,820.01 and 38,982.97 is: 53,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,260.88 : 92,820.01 = 38,982.97 : x
  2. Step 2: Convert to fraction form
    67,260.88/92,820.01 = 38,982.97/x
  3. Step 3: Cross multiply
    67,260.88x = 92,820.01 × 38,982.97
  4. Step 4: Simplify right side
    67,260.88x = 3,618,399,201.13
  5. Step 5: Solve for x
    x = 3,618,399,201.13/67,260.88
  6. Step 6: Final answer
    x = 53,796.49

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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.