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Finding the Fourth Proportional to 17,672.18, 24,388.09 and 10,961.12

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Solution

The fourth proportional to 17,672.18, 24,388.09 and 10,961.12 is: 15,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,672.18 : 24,388.09 = 10,961.12 : x
  2. Step 2: Convert to fraction form
    17,672.18/24,388.09 = 10,961.12/x
  3. Step 3: Cross multiply
    17,672.18x = 24,388.09 × 10,961.12
  4. Step 4: Simplify right side
    17,672.18x = 267,320,814.63
  5. Step 5: Solve for x
    x = 267,320,814.63/17,672.18
  6. Step 6: Final answer
    x = 15,126.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.