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Finding the Fourth Proportional to 22,081.26, 30,472.26 and 12,650.42

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Solution

The fourth proportional to 22,081.26, 30,472.26 and 12,650.42 is: 17,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,081.26 : 30,472.26 = 12,650.42 : x
  2. Step 2: Convert to fraction form
    22,081.26/30,472.26 = 12,650.42/x
  3. Step 3: Cross multiply
    22,081.26x = 30,472.26 × 12,650.42
  4. Step 4: Simplify right side
    22,081.26x = 385,486,887.35
  5. Step 5: Solve for x
    x = 385,486,887.35/22,081.26
  6. Step 6: Final answer
    x = 17,457.65

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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.