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Finding the Fourth Proportional to 22,672.66, 31,287.54 and 12,600.82

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Solution

The fourth proportional to 22,672.66, 31,287.54 and 12,600.82 is: 17,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.66 : 31,287.54 = 12,600.82 : x
  2. Step 2: Convert to fraction form
    22,672.66/31,287.54 = 12,600.82/x
  3. Step 3: Cross multiply
    22,672.66x = 31,287.54 × 12,600.82
  4. Step 4: Simplify right side
    22,672.66x = 394,248,659.78
  5. Step 5: Solve for x
    x = 394,248,659.78/22,672.66
  6. Step 6: Final answer
    x = 17,388.73

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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.