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Finding the Fourth Proportional to 15,566.62, 21,481.92 and 8,493.04

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Solution

The fourth proportional to 15,566.62, 21,481.92 and 8,493.04 is: 11,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,566.62 : 21,481.92 = 8,493.04 : x
  2. Step 2: Convert to fraction form
    15,566.62/21,481.92 = 8,493.04/x
  3. Step 3: Cross multiply
    15,566.62x = 21,481.92 × 8,493.04
  4. Step 4: Simplify right side
    15,566.62x = 182,446,805.84
  5. Step 5: Solve for x
    x = 182,446,805.84/15,566.62
  6. Step 6: Final answer
    x = 11,720.39

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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.