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Finding the Fourth Proportional to 18,341, 25,311.12 and 9,958.04

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Solution

The fourth proportional to 18,341, 25,311.12 and 9,958.04 is: 13,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341 : 25,311.12 = 9,958.04 : x
  2. Step 2: Convert to fraction form
    18,341/25,311.12 = 9,958.04/x
  3. Step 3: Cross multiply
    18,341x = 25,311.12 × 9,958.04
  4. Step 4: Simplify right side
    18,341x = 252,049,145.40
  5. Step 5: Solve for x
    x = 252,049,145.40/18,341
  6. Step 6: Final answer
    x = 13,742.39

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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.