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Finding the Fourth Proportional to 5,791.31, 7,987.93 and 3,554.27

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Solution

The fourth proportional to 5,791.31, 7,987.93 and 3,554.27 is: 4,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.31 : 7,987.93 = 3,554.27 : x
  2. Step 2: Convert to fraction form
    5,791.31/7,987.93 = 3,554.27/x
  3. Step 3: Cross multiply
    5,791.31x = 7,987.93 × 3,554.27
  4. Step 4: Simplify right side
    5,791.31x = 28,391,259.96
  5. Step 5: Solve for x
    x = 28,391,259.96/5,791.31
  6. Step 6: Final answer
    x = 4,902.39

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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.