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Finding the Fourth Proportional to 41,911.65, 62,868.60 and 12,330.45

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Solution

The fourth proportional to 41,911.65, 62,868.60 and 12,330.45 is: 18,496.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,911.65 : 62,868.60 = 12,330.45 : x
  2. Step 2: Convert to fraction form
    41,911.65/62,868.60 = 12,330.45/x
  3. Step 3: Cross multiply
    41,911.65x = 62,868.60 × 12,330.45
  4. Step 4: Simplify right side
    41,911.65x = 775,198,128.87
  5. Step 5: Solve for x
    x = 775,198,128.87/41,911.65
  6. Step 6: Final answer
    x = 18,496.01

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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.