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Finding the Fourth Proportional to 18,382.96, 25,350.84 and 12,346.84

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Solution

The fourth proportional to 18,382.96, 25,350.84 and 12,346.84 is: 17,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.96 : 25,350.84 = 12,346.84 : x
  2. Step 2: Convert to fraction form
    18,382.96/25,350.84 = 12,346.84/x
  3. Step 3: Cross multiply
    18,382.96x = 25,350.84 × 12,346.84
  4. Step 4: Simplify right side
    18,382.96x = 313,002,765.35
  5. Step 5: Solve for x
    x = 313,002,765.35/18,382.96
  6. Step 6: Final answer
    x = 17,026.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.