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Finding the Fourth Proportional to 8,266.88, 12,402.16 and 2,721.94

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Solution

The fourth proportional to 8,266.88, 12,402.16 and 2,721.94 is: 4,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.88 : 12,402.16 = 2,721.94 : x
  2. Step 2: Convert to fraction form
    8,266.88/12,402.16 = 2,721.94/x
  3. Step 3: Cross multiply
    8,266.88x = 12,402.16 × 2,721.94
  4. Step 4: Simplify right side
    8,266.88x = 33,757,897.58
  5. Step 5: Solve for x
    x = 33,757,897.58/8,266.88
  6. Step 6: Final answer
    x = 4,083.51

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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.