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Finding the Fourth Proportional to 22,102.70, 33,117.60 and 18,384.80

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Solution

The fourth proportional to 22,102.70, 33,117.60 and 18,384.80 is: 27,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,102.70 : 33,117.60 = 18,384.80 : x
  2. Step 2: Convert to fraction form
    22,102.70/33,117.60 = 18,384.80/x
  3. Step 3: Cross multiply
    22,102.70x = 33,117.60 × 18,384.80
  4. Step 4: Simplify right side
    22,102.70x = 608,860,452.48
  5. Step 5: Solve for x
    x = 608,860,452.48/22,102.70
  6. Step 6: Final answer
    x = 27,546.88

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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.