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Finding the Fourth Proportional to 9,997.11, 14,986.74 and 5,064.21

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Solution

The fourth proportional to 9,997.11, 14,986.74 and 5,064.21 is: 7,591.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.11 : 14,986.74 = 5,064.21 : x
  2. Step 2: Convert to fraction form
    9,997.11/14,986.74 = 5,064.21/x
  3. Step 3: Cross multiply
    9,997.11x = 14,986.74 × 5,064.21
  4. Step 4: Simplify right side
    9,997.11x = 75,895,998.58
  5. Step 5: Solve for x
    x = 75,895,998.58/9,997.11
  6. Step 6: Final answer
    x = 7,591.79

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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.