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Finding the Fourth Proportional to 7,716.98, 11,568.98 and 5,244.86

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Solution

The fourth proportional to 7,716.98, 11,568.98 and 5,244.86 is: 7,862.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.98 : 11,568.98 = 5,244.86 : x
  2. Step 2: Convert to fraction form
    7,716.98/11,568.98 = 5,244.86/x
  3. Step 3: Cross multiply
    7,716.98x = 11,568.98 × 5,244.86
  4. Step 4: Simplify right side
    7,716.98x = 60,677,680.44
  5. Step 5: Solve for x
    x = 60,677,680.44/7,716.98
  6. Step 6: Final answer
    x = 7,862.88

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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.