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Finding the Fourth Proportional to 8,269.65, 12,404.88 and 3,338.67

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Solution

The fourth proportional to 8,269.65, 12,404.88 and 3,338.67 is: 5,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.65 : 12,404.88 = 3,338.67 : x
  2. Step 2: Convert to fraction form
    8,269.65/12,404.88 = 3,338.67/x
  3. Step 3: Cross multiply
    8,269.65x = 12,404.88 × 3,338.67
  4. Step 4: Simplify right side
    8,269.65x = 41,415,784.02
  5. Step 5: Solve for x
    x = 41,415,784.02/8,269.65
  6. Step 6: Final answer
    x = 5,008.17

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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.