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Finding the Fourth Proportional to 22,204.01, 30,640.63 and 12,132.80

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Solution

The fourth proportional to 22,204.01, 30,640.63 and 12,132.80 is: 16,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,204.01 : 30,640.63 = 12,132.80 : x
  2. Step 2: Convert to fraction form
    22,204.01/30,640.63 = 12,132.80/x
  3. Step 3: Cross multiply
    22,204.01x = 30,640.63 × 12,132.80
  4. Step 4: Simplify right side
    22,204.01x = 371,756,421.80
  5. Step 5: Solve for x
    x = 371,756,421.80/22,204.01
  6. Step 6: Final answer
    x = 16,742.76

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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.