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Finding the Fourth Proportional to 11,672.49, 17,508.80 and 2,907.41

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Solution

The fourth proportional to 11,672.49, 17,508.80 and 2,907.41 is: 4,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.49 : 17,508.80 = 2,907.41 : x
  2. Step 2: Convert to fraction form
    11,672.49/17,508.80 = 2,907.41/x
  3. Step 3: Cross multiply
    11,672.49x = 17,508.80 × 2,907.41
  4. Step 4: Simplify right side
    11,672.49x = 50,905,158.13
  5. Step 5: Solve for x
    x = 50,905,158.13/11,672.49
  6. Step 6: Final answer
    x = 4,361.12

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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.