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Finding the Fourth Proportional to 22,551.68, 33,662.17 and 20,930.06

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Solution

The fourth proportional to 22,551.68, 33,662.17 and 20,930.06 is: 31,241.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,551.68 : 33,662.17 = 20,930.06 : x
  2. Step 2: Convert to fraction form
    22,551.68/33,662.17 = 20,930.06/x
  3. Step 3: Cross multiply
    22,551.68x = 33,662.17 × 20,930.06
  4. Step 4: Simplify right side
    22,551.68x = 704,551,237.83
  5. Step 5: Solve for x
    x = 704,551,237.83/22,551.68
  6. Step 6: Final answer
    x = 31,241.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.