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Finding the Fourth Proportional to 71,593.35, 98,796.09 and 39,764.30

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Solution

The fourth proportional to 71,593.35, 98,796.09 and 39,764.30 is: 54,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,593.35 : 98,796.09 = 39,764.30 : x
  2. Step 2: Convert to fraction form
    71,593.35/98,796.09 = 39,764.30/x
  3. Step 3: Cross multiply
    71,593.35x = 98,796.09 × 39,764.30
  4. Step 4: Simplify right side
    71,593.35x = 3,928,557,608.58
  5. Step 5: Solve for x
    x = 3,928,557,608.58/71,593.35
  6. Step 6: Final answer
    x = 54,873.22

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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.