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Finding the Fourth Proportional to 11,479.31, 17,205.11 and 5,929.62

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Solution

The fourth proportional to 11,479.31, 17,205.11 and 5,929.62 is: 8,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.31 : 17,205.11 = 5,929.62 : x
  2. Step 2: Convert to fraction form
    11,479.31/17,205.11 = 5,929.62/x
  3. Step 3: Cross multiply
    11,479.31x = 17,205.11 × 5,929.62
  4. Step 4: Simplify right side
    11,479.31x = 102,019,764.36
  5. Step 5: Solve for x
    x = 102,019,764.36/11,479.31
  6. Step 6: Final answer
    x = 8,887.27

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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.