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Finding the Fourth Proportional to 11,796.76, 17,682.80 and 4,398

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Solution

The fourth proportional to 11,796.76, 17,682.80 and 4,398 is: 6,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,796.76 : 17,682.80 = 4,398 : x
  2. Step 2: Convert to fraction form
    11,796.76/17,682.80 = 4,398/x
  3. Step 3: Cross multiply
    11,796.76x = 17,682.80 × 4,398
  4. Step 4: Simplify right side
    11,796.76x = 77,768,954.40
  5. Step 5: Solve for x
    x = 77,768,954.40/11,796.76
  6. Step 6: Final answer
    x = 6,592.40

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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.