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Finding the Fourth Proportional to 22,100.70, 33,114.60 and 18,382.80

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Solution

The fourth proportional to 22,100.70, 33,114.60 and 18,382.80 is: 27,543.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,100.70 : 33,114.60 = 18,382.80 : x
  2. Step 2: Convert to fraction form
    22,100.70/33,114.60 = 18,382.80/x
  3. Step 3: Cross multiply
    22,100.70x = 33,114.60 × 18,382.80
  4. Step 4: Simplify right side
    22,100.70x = 608,739,068.88
  5. Step 5: Solve for x
    x = 608,739,068.88/22,100.70
  6. Step 6: Final answer
    x = 27,543.88

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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.