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Finding the Fourth Proportional to 22,372.71, 30,874.55 and 12,301.22

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Solution

The fourth proportional to 22,372.71, 30,874.55 and 12,301.22 is: 16,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,372.71 : 30,874.55 = 12,301.22 : x
  2. Step 2: Convert to fraction form
    22,372.71/30,874.55 = 12,301.22/x
  3. Step 3: Cross multiply
    22,372.71x = 30,874.55 × 12,301.22
  4. Step 4: Simplify right side
    22,372.71x = 379,794,570.44
  5. Step 5: Solve for x
    x = 379,794,570.44/22,372.71
  6. Step 6: Final answer
    x = 16,975.80

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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.