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Finding the Fourth Proportional to 3,950.49, 5,929.33 and 2,103.16

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Solution

The fourth proportional to 3,950.49, 5,929.33 and 2,103.16 is: 3,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.49 : 5,929.33 = 2,103.16 : x
  2. Step 2: Convert to fraction form
    3,950.49/5,929.33 = 2,103.16/x
  3. Step 3: Cross multiply
    3,950.49x = 5,929.33 × 2,103.16
  4. Step 4: Simplify right side
    3,950.49x = 12,470,329.68
  5. Step 5: Solve for x
    x = 12,470,329.68/3,950.49
  6. Step 6: Final answer
    x = 3,156.65

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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.