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Finding the Fourth Proportional to 39,344.70, 58,974.10 and 19,367.94

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Solution

The fourth proportional to 39,344.70, 58,974.10 and 19,367.94 is: 29,030.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,344.70 : 58,974.10 = 19,367.94 : x
  2. Step 2: Convert to fraction form
    39,344.70/58,974.10 = 19,367.94/x
  3. Step 3: Cross multiply
    39,344.70x = 58,974.10 × 19,367.94
  4. Step 4: Simplify right side
    39,344.70x = 1,142,206,830.35
  5. Step 5: Solve for x
    x = 1,142,206,830.35/39,344.70
  6. Step 6: Final answer
    x = 29,030.77

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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.