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Finding the Fourth Proportional to 6,522.78, 9,001.08 and 3,690.48

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Solution

The fourth proportional to 6,522.78, 9,001.08 and 3,690.48 is: 5,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,522.78 : 9,001.08 = 3,690.48 : x
  2. Step 2: Convert to fraction form
    6,522.78/9,001.08 = 3,690.48/x
  3. Step 3: Cross multiply
    6,522.78x = 9,001.08 × 3,690.48
  4. Step 4: Simplify right side
    6,522.78x = 33,218,305.72
  5. Step 5: Solve for x
    x = 33,218,305.72/6,522.78
  6. Step 6: Final answer
    x = 5,092.66

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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.