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Finding the Fourth Proportional to 10,216.68, 15,324.66 and 3,291

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Solution

The fourth proportional to 10,216.68, 15,324.66 and 3,291 is: 4,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,216.68 : 15,324.66 = 3,291 : x
  2. Step 2: Convert to fraction form
    10,216.68/15,324.66 = 3,291/x
  3. Step 3: Cross multiply
    10,216.68x = 15,324.66 × 3,291
  4. Step 4: Simplify right side
    10,216.68x = 50,433,456.06
  5. Step 5: Solve for x
    x = 50,433,456.06/10,216.68
  6. Step 6: Final answer
    x = 4,936.38

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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.