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Finding the Fourth Proportional to 5,316.97, 7,965.98 and 3,235.91

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Solution

The fourth proportional to 5,316.97, 7,965.98 and 3,235.91 is: 4,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.97 : 7,965.98 = 3,235.91 : x
  2. Step 2: Convert to fraction form
    5,316.97/7,965.98 = 3,235.91/x
  3. Step 3: Cross multiply
    5,316.97x = 7,965.98 × 3,235.91
  4. Step 4: Simplify right side
    5,316.97x = 25,777,149.24
  5. Step 5: Solve for x
    x = 25,777,149.24/5,316.97
  6. Step 6: Final answer
    x = 4,848.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.