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Finding the Third Proportional to 3,217 and 4,342

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Solution

The third proportional to 3,217 and 4,342 is: 5,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217 : 4,342 = 4,342 : x
  2. Step 2: Convert to fraction form
    3,217/4,342 = 4,342/x
  3. Step 3: Cross multiply
    3,217x = 4,342 × 4,342
  4. Step 4: Simplify right side
    3,217x = 18,852,964
  5. Step 5: Solve for x
    x = 18,852,964/3,217
  6. Step 6: Final answer
    x = 5,860.42

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.