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Finding the Fourth Proportional to 17,874.88, 24,659.04 and 11,156.16

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Solution

The fourth proportional to 17,874.88, 24,659.04 and 11,156.16 is: 15,390.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,874.88 : 24,659.04 = 11,156.16 : x
  2. Step 2: Convert to fraction form
    17,874.88/24,659.04 = 11,156.16/x
  3. Step 3: Cross multiply
    17,874.88x = 24,659.04 × 11,156.16
  4. Step 4: Simplify right side
    17,874.88x = 275,100,195.69
  5. Step 5: Solve for x
    x = 275,100,195.69/17,874.88
  6. Step 6: Final answer
    x = 15,390.32

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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.