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Finding the Fourth Proportional to 20,596.62, 30,894.92 and 17,815.03

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Solution

The fourth proportional to 20,596.62, 30,894.92 and 17,815.03 is: 26,722.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.62 : 30,894.92 = 17,815.03 : x
  2. Step 2: Convert to fraction form
    20,596.62/30,894.92 = 17,815.03/x
  3. Step 3: Cross multiply
    20,596.62x = 30,894.92 × 17,815.03
  4. Step 4: Simplify right side
    20,596.62x = 550,393,827.14
  5. Step 5: Solve for x
    x = 550,393,827.14/20,596.62
  6. Step 6: Final answer
    x = 26,722.53

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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.