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Finding the Third Proportional to 3,433 and 5,315

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Solution

The third proportional to 3,433 and 5,315 is: 8,228.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433 : 5,315 = 5,315 : x
  2. Step 2: Convert to fraction form
    3,433/5,315 = 5,315/x
  3. Step 3: Cross multiply
    3,433x = 5,315 × 5,315
  4. Step 4: Simplify right side
    3,433x = 28,249,225
  5. Step 5: Solve for x
    x = 28,249,225/3,433
  6. Step 6: Final answer
    x = 8,228.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.