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Finding the Fourth Proportional to 29,143.96, 43,723.50 and 8,369.08

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Solution

The fourth proportional to 29,143.96, 43,723.50 and 8,369.08 is: 12,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,143.96 : 43,723.50 = 8,369.08 : x
  2. Step 2: Convert to fraction form
    29,143.96/43,723.50 = 8,369.08/x
  3. Step 3: Cross multiply
    29,143.96x = 43,723.50 × 8,369.08
  4. Step 4: Simplify right side
    29,143.96x = 365,925,469.38
  5. Step 5: Solve for x
    x = 365,925,469.38/29,143.96
  6. Step 6: Final answer
    x = 12,555.79

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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.