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Finding the Fourth Proportional to 17,712.56, 26,567.76 and 7,324.04

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Solution

The fourth proportional to 17,712.56, 26,567.76 and 7,324.04 is: 10,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,712.56 : 26,567.76 = 7,324.04 : x
  2. Step 2: Convert to fraction form
    17,712.56/26,567.76 = 7,324.04/x
  3. Step 3: Cross multiply
    17,712.56x = 26,567.76 × 7,324.04
  4. Step 4: Simplify right side
    17,712.56x = 194,583,336.95
  5. Step 5: Solve for x
    x = 194,583,336.95/17,712.56
  6. Step 6: Final answer
    x = 10,985.61

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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.