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Finding the Fourth Proportional to 11,874.75, 17,812.13 and 4,949.25

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Solution

The fourth proportional to 11,874.75, 17,812.13 and 4,949.25 is: 7,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.75 : 17,812.13 = 4,949.25 : x
  2. Step 2: Convert to fraction form
    11,874.75/17,812.13 = 4,949.25/x
  3. Step 3: Cross multiply
    11,874.75x = 17,812.13 × 4,949.25
  4. Step 4: Simplify right side
    11,874.75x = 88,156,659.66
  5. Step 5: Solve for x
    x = 88,156,659.66/11,874.75
  6. Step 6: Final answer
    x = 7,423.88

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1.5x scale

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.