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Finding the Fourth Proportional to 21,596.16, 32,348.16 and 20,029.44

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Solution

The fourth proportional to 21,596.16, 32,348.16 and 20,029.44 is: 30,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.16 : 32,348.16 = 20,029.44 : x
  2. Step 2: Convert to fraction form
    21,596.16/32,348.16 = 20,029.44/x
  3. Step 3: Cross multiply
    21,596.16x = 32,348.16 × 20,029.44
  4. Step 4: Simplify right side
    21,596.16x = 647,915,529.83
  5. Step 5: Solve for x
    x = 647,915,529.83/21,596.16
  6. Step 6: Final answer
    x = 30,001.42

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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.