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Finding the Fourth Proportional to 45,757.67, 68,609.39 and 14,158.38

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Solution

The fourth proportional to 45,757.67, 68,609.39 and 14,158.38 is: 21,229.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,757.67 : 68,609.39 = 14,158.38 : x
  2. Step 2: Convert to fraction form
    45,757.67/68,609.39 = 14,158.38/x
  3. Step 3: Cross multiply
    45,757.67x = 68,609.39 × 14,158.38
  4. Step 4: Simplify right side
    45,757.67x = 971,397,744.40
  5. Step 5: Solve for x
    x = 971,397,744.40/45,757.67
  6. Step 6: Final answer
    x = 21,229.18

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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.