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Finding the Fourth Proportional to 22,272.01, 30,734.99 and 12,200.65

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Solution

The fourth proportional to 22,272.01, 30,734.99 and 12,200.65 is: 16,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.01 : 30,734.99 = 12,200.65 : x
  2. Step 2: Convert to fraction form
    22,272.01/30,734.99 = 12,200.65/x
  3. Step 3: Cross multiply
    22,272.01x = 30,734.99 × 12,200.65
  4. Step 4: Simplify right side
    22,272.01x = 374,986,794.74
  5. Step 5: Solve for x
    x = 374,986,794.74/22,272.01
  6. Step 6: Final answer
    x = 16,836.68

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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.