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Finding the Fourth Proportional to 22,954.78, 31,672.78 and 15,008.68

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Solution

The fourth proportional to 22,954.78, 31,672.78 and 15,008.68 is: 20,708.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,954.78 : 31,672.78 = 15,008.68 : x
  2. Step 2: Convert to fraction form
    22,954.78/31,672.78 = 15,008.68/x
  3. Step 3: Cross multiply
    22,954.78x = 31,672.78 × 15,008.68
  4. Step 4: Simplify right side
    22,954.78x = 475,366,619.73
  5. Step 5: Solve for x
    x = 475,366,619.73/22,954.78
  6. Step 6: Final answer
    x = 20,708.83

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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.