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Finding the Fourth Proportional to 66,881.33, 100,292.82 and 25,299.17

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Solution

The fourth proportional to 66,881.33, 100,292.82 and 25,299.17 is: 37,937.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.33 : 100,292.82 = 25,299.17 : x
  2. Step 2: Convert to fraction form
    66,881.33/100,292.82 = 25,299.17/x
  3. Step 3: Cross multiply
    66,881.33x = 100,292.82 × 25,299.17
  4. Step 4: Simplify right side
    66,881.33x = 2,537,324,601.50
  5. Step 5: Solve for x
    x = 2,537,324,601.50/66,881.33
  6. Step 6: Final answer
    x = 37,937.71

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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.