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Finding the Fourth Proportional to 18,490.54, 27,719.25 and 6,795.58

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Solution

The fourth proportional to 18,490.54, 27,719.25 and 6,795.58 is: 10,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.54 : 27,719.25 = 6,795.58 : x
  2. Step 2: Convert to fraction form
    18,490.54/27,719.25 = 6,795.58/x
  3. Step 3: Cross multiply
    18,490.54x = 27,719.25 × 6,795.58
  4. Step 4: Simplify right side
    18,490.54x = 188,368,380.92
  5. Step 5: Solve for x
    x = 188,368,380.92/18,490.54
  6. Step 6: Final answer
    x = 10,187.28

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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.