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Finding the Fourth Proportional to 5,326.02, 7,991.73 and 3,591

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Solution

The fourth proportional to 5,326.02, 7,991.73 and 3,591 is: 5,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.02 : 7,991.73 = 3,591 : x
  2. Step 2: Convert to fraction form
    5,326.02/7,991.73 = 3,591/x
  3. Step 3: Cross multiply
    5,326.02x = 7,991.73 × 3,591
  4. Step 4: Simplify right side
    5,326.02x = 28,698,302.43
  5. Step 5: Solve for x
    x = 28,698,302.43/5,326.02
  6. Step 6: Final answer
    x = 5,388.32

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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.