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Finding the Fourth Proportional to 22,207.80, 33,310.74 and 12,340.82

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Solution

The fourth proportional to 22,207.80, 33,310.74 and 12,340.82 is: 18,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.80 : 33,310.74 = 12,340.82 : x
  2. Step 2: Convert to fraction form
    22,207.80/33,310.74 = 12,340.82/x
  3. Step 3: Cross multiply
    22,207.80x = 33,310.74 × 12,340.82
  4. Step 4: Simplify right side
    22,207.80x = 411,081,846.41
  5. Step 5: Solve for x
    x = 411,081,846.41/22,207.80
  6. Step 6: Final answer
    x = 18,510.70

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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.