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Finding the Fourth Proportional to 11,324.56, 16,987.20 and 3,534

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Solution

The fourth proportional to 11,324.56, 16,987.20 and 3,534 is: 5,301.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.56 : 16,987.20 = 3,534 : x
  2. Step 2: Convert to fraction form
    11,324.56/16,987.20 = 3,534/x
  3. Step 3: Cross multiply
    11,324.56x = 16,987.20 × 3,534
  4. Step 4: Simplify right side
    11,324.56x = 60,032,764.80
  5. Step 5: Solve for x
    x = 60,032,764.80/11,324.56
  6. Step 6: Final answer
    x = 5,301.11

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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.