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Finding the Fourth Proportional to 18,101.85, 27,152.79 and 4,954.33

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Solution

The fourth proportional to 18,101.85, 27,152.79 and 4,954.33 is: 7,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.85 : 27,152.79 = 4,954.33 : x
  2. Step 2: Convert to fraction form
    18,101.85/27,152.79 = 4,954.33/x
  3. Step 3: Cross multiply
    18,101.85x = 27,152.79 × 4,954.33
  4. Step 4: Simplify right side
    18,101.85x = 134,523,882.08
  5. Step 5: Solve for x
    x = 134,523,882.08/18,101.85
  6. Step 6: Final answer
    x = 7,431.50

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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.