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Finding the Fourth Proportional to 40,658.67, 60,986.07 and 16,956.45

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Solution

The fourth proportional to 40,658.67, 60,986.07 and 16,956.45 is: 25,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,658.67 : 60,986.07 = 16,956.45 : x
  2. Step 2: Convert to fraction form
    40,658.67/60,986.07 = 16,956.45/x
  3. Step 3: Cross multiply
    40,658.67x = 60,986.07 × 16,956.45
  4. Step 4: Simplify right side
    40,658.67x = 1,034,107,246.65
  5. Step 5: Solve for x
    x = 1,034,107,246.65/40,658.67
  6. Step 6: Final answer
    x = 25,433.87

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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.