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Finding the Fourth Proportional to 9,687.11, 14,531.68 and 3,447.70

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Solution

The fourth proportional to 9,687.11, 14,531.68 and 3,447.70 is: 5,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.11 : 14,531.68 = 3,447.70 : x
  2. Step 2: Convert to fraction form
    9,687.11/14,531.68 = 3,447.70/x
  3. Step 3: Cross multiply
    9,687.11x = 14,531.68 × 3,447.70
  4. Step 4: Simplify right side
    9,687.11x = 50,100,873.14
  5. Step 5: Solve for x
    x = 50,100,873.14/9,687.11
  6. Step 6: Final answer
    x = 5,171.91

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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.