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Finding the Fourth Proportional to 22,672.29, 31,287.15 and 12,600.48

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Solution

The fourth proportional to 22,672.29, 31,287.15 and 12,600.48 is: 17,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.29 : 31,287.15 = 12,600.48 : x
  2. Step 2: Convert to fraction form
    22,672.29/31,287.15 = 12,600.48/x
  3. Step 3: Cross multiply
    22,672.29x = 31,287.15 × 12,600.48
  4. Step 4: Simplify right side
    22,672.29x = 394,233,107.83
  5. Step 5: Solve for x
    x = 394,233,107.83/22,672.29
  6. Step 6: Final answer
    x = 17,388.32

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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.