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Finding the Fourth Proportional to 18,101.58, 27,149.85 and 4,955.10

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Solution

The fourth proportional to 18,101.58, 27,149.85 and 4,955.10 is: 7,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.58 : 27,149.85 = 4,955.10 : x
  2. Step 2: Convert to fraction form
    18,101.58/27,149.85 = 4,955.10/x
  3. Step 3: Cross multiply
    18,101.58x = 27,149.85 × 4,955.10
  4. Step 4: Simplify right side
    18,101.58x = 134,530,221.74
  5. Step 5: Solve for x
    x = 134,530,221.74/18,101.58
  6. Step 6: Final answer
    x = 7,431.96

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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.