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Finding the Fourth Proportional to 45,687.80, 68,500.50 and 24,343.72

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Solution

The fourth proportional to 45,687.80, 68,500.50 and 24,343.72 is: 36,498.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,687.80 : 68,500.50 = 24,343.72 : x
  2. Step 2: Convert to fraction form
    45,687.80/68,500.50 = 24,343.72/x
  3. Step 3: Cross multiply
    45,687.80x = 68,500.50 × 24,343.72
  4. Step 4: Simplify right side
    45,687.80x = 1,667,556,991.86
  5. Step 5: Solve for x
    x = 1,667,556,991.86/45,687.80
  6. Step 6: Final answer
    x = 36,498.96

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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.