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Finding the Fourth Proportional to 19,647.24, 29,476.08 and 8,556.24

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Solution

The fourth proportional to 19,647.24, 29,476.08 and 8,556.24 is: 12,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.24 : 29,476.08 = 8,556.24 : x
  2. Step 2: Convert to fraction form
    19,647.24/29,476.08 = 8,556.24/x
  3. Step 3: Cross multiply
    19,647.24x = 29,476.08 × 8,556.24
  4. Step 4: Simplify right side
    19,647.24x = 252,204,414.74
  5. Step 5: Solve for x
    x = 252,204,414.74/19,647.24
  6. Step 6: Final answer
    x = 12,836.63

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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.