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Finding the Fourth Proportional to 39,203.82, 58,805.73 and 9,621.41

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Solution

The fourth proportional to 39,203.82, 58,805.73 and 9,621.41 is: 14,432.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,203.82 : 58,805.73 = 9,621.41 : x
  2. Step 2: Convert to fraction form
    39,203.82/58,805.73 = 9,621.41/x
  3. Step 3: Cross multiply
    39,203.82x = 58,805.73 × 9,621.41
  4. Step 4: Simplify right side
    39,203.82x = 565,793,744.65
  5. Step 5: Solve for x
    x = 565,793,744.65/39,203.82
  6. Step 6: Final answer
    x = 14,432.11

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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.