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Finding the Fourth Proportional to 18,152.55, 27,221.85 and 10,759.05

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Solution

The fourth proportional to 18,152.55, 27,221.85 and 10,759.05 is: 16,134.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.55 : 27,221.85 = 10,759.05 : x
  2. Step 2: Convert to fraction form
    18,152.55/27,221.85 = 10,759.05/x
  3. Step 3: Cross multiply
    18,152.55x = 27,221.85 × 10,759.05
  4. Step 4: Simplify right side
    18,152.55x = 292,881,245.24
  5. Step 5: Solve for x
    x = 292,881,245.24/18,152.55
  6. Step 6: Final answer
    x = 16,134.44

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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.