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Finding the Third Proportional to 2,176.88 and 3,209.63

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Solution

The third proportional to 2,176.88 and 3,209.63 is: 4,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.88 : 3,209.63 = 3,209.63 : x
  2. Step 2: Convert to fraction form
    2,176.88/3,209.63 = 3,209.63/x
  3. Step 3: Cross multiply
    2,176.88x = 3,209.63 × 3,209.63
  4. Step 4: Simplify right side
    2,176.88x = 10,301,692.64
  5. Step 5: Solve for x
    x = 10,301,692.64/2,176.88
  6. Step 6: Final answer
    x = 4,732.33

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.