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Finding the Fourth Proportional to 62,511.66, 93,770.51 and 20,391.66

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Solution

The fourth proportional to 62,511.66, 93,770.51 and 20,391.66 is: 30,588.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,511.66 : 93,770.51 = 20,391.66 : x
  2. Step 2: Convert to fraction form
    62,511.66/93,770.51 = 20,391.66/x
  3. Step 3: Cross multiply
    62,511.66x = 93,770.51 × 20,391.66
  4. Step 4: Simplify right side
    62,511.66x = 1,912,136,370.69
  5. Step 5: Solve for x
    x = 1,912,136,370.69/62,511.66
  6. Step 6: Final answer
    x = 30,588.48

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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.