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Finding the Fourth Proportional to 41,969.80, 62,957.94 and 12,386.98

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Solution

The fourth proportional to 41,969.80, 62,957.94 and 12,386.98 is: 18,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,969.80 : 62,957.94 = 12,386.98 : x
  2. Step 2: Convert to fraction form
    41,969.80/62,957.94 = 12,386.98/x
  3. Step 3: Cross multiply
    41,969.80x = 62,957.94 × 12,386.98
  4. Step 4: Simplify right side
    41,969.80x = 779,858,743.62
  5. Step 5: Solve for x
    x = 779,858,743.62/41,969.80
  6. Step 6: Final answer
    x = 18,581.43

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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.