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Finding the Fourth Proportional to 18,834, 25,991.08 and 10,450.48

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Solution

The fourth proportional to 18,834, 25,991.08 and 10,450.48 is: 14,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834 : 25,991.08 = 10,450.48 : x
  2. Step 2: Convert to fraction form
    18,834/25,991.08 = 10,450.48/x
  3. Step 3: Cross multiply
    18,834x = 25,991.08 × 10,450.48
  4. Step 4: Simplify right side
    18,834x = 271,619,261.72
  5. Step 5: Solve for x
    x = 271,619,261.72/18,834
  6. Step 6: Final answer
    x = 14,421.75

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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.