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Finding the Fourth Proportional to 22,704.30, 33,991.65 and 20,112.30

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Solution

The fourth proportional to 22,704.30, 33,991.65 and 20,112.30 is: 30,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,704.30 : 33,991.65 = 20,112.30 : x
  2. Step 2: Convert to fraction form
    22,704.30/33,991.65 = 20,112.30/x
  3. Step 3: Cross multiply
    22,704.30x = 33,991.65 × 20,112.30
  4. Step 4: Simplify right side
    22,704.30x = 683,650,262.30
  5. Step 5: Solve for x
    x = 683,650,262.30/22,704.30
  6. Step 6: Final answer
    x = 30,111.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.