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Finding the Fourth Proportional to 7,479.62, 11,204.49 and 6,867.26

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Solution

The fourth proportional to 7,479.62, 11,204.49 and 6,867.26 is: 10,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.62 : 11,204.49 = 6,867.26 : x
  2. Step 2: Convert to fraction form
    7,479.62/11,204.49 = 6,867.26/x
  3. Step 3: Cross multiply
    7,479.62x = 11,204.49 × 6,867.26
  4. Step 4: Simplify right side
    7,479.62x = 76,944,146.00
  5. Step 5: Solve for x
    x = 76,944,146.00/7,479.62
  6. Step 6: Final answer
    x = 10,287.17

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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.