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Finding the Fourth Proportional to 22,491.80, 33,716.10 and 17,491.40

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Solution

The fourth proportional to 22,491.80, 33,716.10 and 17,491.40 is: 26,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.80 : 33,716.10 = 17,491.40 : x
  2. Step 2: Convert to fraction form
    22,491.80/33,716.10 = 17,491.40/x
  3. Step 3: Cross multiply
    22,491.80x = 33,716.10 × 17,491.40
  4. Step 4: Simplify right side
    22,491.80x = 589,741,791.54
  5. Step 5: Solve for x
    x = 589,741,791.54/22,491.80
  6. Step 6: Final answer
    x = 26,220.30

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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.