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Finding the Fourth Proportional to 29,556.56, 40,789.04 and 16,128.55

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Solution

The fourth proportional to 29,556.56, 40,789.04 and 16,128.55 is: 22,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,556.56 : 40,789.04 = 16,128.55 : x
  2. Step 2: Convert to fraction form
    29,556.56/40,789.04 = 16,128.55/x
  3. Step 3: Cross multiply
    29,556.56x = 40,789.04 × 16,128.55
  4. Step 4: Simplify right side
    29,556.56x = 657,868,033.44
  5. Step 5: Solve for x
    x = 657,868,033.44/29,556.56
  6. Step 6: Final answer
    x = 22,257.94

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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.