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Finding the Fourth Proportional to 8,949.11, 13,425.76 and 2,709.17

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Solution

The fourth proportional to 8,949.11, 13,425.76 and 2,709.17 is: 4,064.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.11 : 13,425.76 = 2,709.17 : x
  2. Step 2: Convert to fraction form
    8,949.11/13,425.76 = 2,709.17/x
  3. Step 3: Cross multiply
    8,949.11x = 13,425.76 × 2,709.17
  4. Step 4: Simplify right side
    8,949.11x = 36,372,666.22
  5. Step 5: Solve for x
    x = 36,372,666.22/8,949.11
  6. Step 6: Final answer
    x = 4,064.39

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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.