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Finding the Fourth Proportional to 8,626.84, 11,891.22 and 6,499.24

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Solution

The fourth proportional to 8,626.84, 11,891.22 and 6,499.24 is: 8,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.84 : 11,891.22 = 6,499.24 : x
  2. Step 2: Convert to fraction form
    8,626.84/11,891.22 = 6,499.24/x
  3. Step 3: Cross multiply
    8,626.84x = 11,891.22 × 6,499.24
  4. Step 4: Simplify right side
    8,626.84x = 77,283,892.67
  5. Step 5: Solve for x
    x = 77,283,892.67/8,626.84
  6. Step 6: Final answer
    x = 8,958.54

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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.