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Finding the Third Proportional to 4,329.15 and 9,479.49

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Solution

The third proportional to 4,329.15 and 9,479.49 is: 20,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,329.15 : 9,479.49 = 9,479.49 : x
  2. Step 2: Convert to fraction form
    4,329.15/9,479.49 = 9,479.49/x
  3. Step 3: Cross multiply
    4,329.15x = 9,479.49 × 9,479.49
  4. Step 4: Simplify right side
    4,329.15x = 89,860,762.88
  5. Step 5: Solve for x
    x = 89,860,762.88/4,329.15
  6. Step 6: Final answer
    x = 20,757.14

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.