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Finding the Fourth Proportional to 3,339.72, 5,007.46 and 2,929.68

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Solution

The fourth proportional to 3,339.72, 5,007.46 and 2,929.68 is: 4,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.72 : 5,007.46 = 2,929.68 : x
  2. Step 2: Convert to fraction form
    3,339.72/5,007.46 = 2,929.68/x
  3. Step 3: Cross multiply
    3,339.72x = 5,007.46 × 2,929.68
  4. Step 4: Simplify right side
    3,339.72x = 14,670,255.41
  5. Step 5: Solve for x
    x = 14,670,255.41/3,339.72
  6. Step 6: Final answer
    x = 4,392.66

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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.