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Finding the Fourth Proportional to 18,364.62, 27,546.42 and 12,346.93

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Solution

The fourth proportional to 18,364.62, 27,546.42 and 12,346.93 is: 18,520.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.62 : 27,546.42 = 12,346.93 : x
  2. Step 2: Convert to fraction form
    18,364.62/27,546.42 = 12,346.93/x
  3. Step 3: Cross multiply
    18,364.62x = 27,546.42 × 12,346.93
  4. Step 4: Simplify right side
    18,364.62x = 340,113,581.76
  5. Step 5: Solve for x
    x = 340,113,581.76/18,364.62
  6. Step 6: Final answer
    x = 18,520.04

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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.