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Finding the Fourth Proportional to 11,326.67, 16,990.89 and 3,006.50

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Solution

The fourth proportional to 11,326.67, 16,990.89 and 3,006.50 is: 4,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.67 : 16,990.89 = 3,006.50 : x
  2. Step 2: Convert to fraction form
    11,326.67/16,990.89 = 3,006.50/x
  3. Step 3: Cross multiply
    11,326.67x = 16,990.89 × 3,006.50
  4. Step 4: Simplify right side
    11,326.67x = 51,083,110.79
  5. Step 5: Solve for x
    x = 51,083,110.79/11,326.67
  6. Step 6: Final answer
    x = 4,509.98

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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.