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Finding the Fourth Proportional to 5,759.72, 7,948.45 and 3,241.88

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Solution

The fourth proportional to 5,759.72, 7,948.45 and 3,241.88 is: 4,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.72 : 7,948.45 = 3,241.88 : x
  2. Step 2: Convert to fraction form
    5,759.72/7,948.45 = 3,241.88/x
  3. Step 3: Cross multiply
    5,759.72x = 7,948.45 × 3,241.88
  4. Step 4: Simplify right side
    5,759.72x = 25,767,873.24
  5. Step 5: Solve for x
    x = 25,767,873.24/5,759.72
  6. Step 6: Final answer
    x = 4,473.80

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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.