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Finding the Fourth Proportional to 8,825.80, 13,242.17 and 3,892

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Solution

The fourth proportional to 8,825.80, 13,242.17 and 3,892 is: 5,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.80 : 13,242.17 = 3,892 : x
  2. Step 2: Convert to fraction form
    8,825.80/13,242.17 = 3,892/x
  3. Step 3: Cross multiply
    8,825.80x = 13,242.17 × 3,892
  4. Step 4: Simplify right side
    8,825.80x = 51,538,525.64
  5. Step 5: Solve for x
    x = 51,538,525.64/8,825.80
  6. Step 6: Final answer
    x = 5,839.53

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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.