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Finding the Third Proportional to 4,374 and 5,689

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Solution

The third proportional to 4,374 and 5,689 is: 7,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,374 : 5,689 = 5,689 : x
  2. Step 2: Convert to fraction form
    4,374/5,689 = 5,689/x
  3. Step 3: Cross multiply
    4,374x = 5,689 × 5,689
  4. Step 4: Simplify right side
    4,374x = 32,364,721
  5. Step 5: Solve for x
    x = 32,364,721/4,374
  6. Step 6: Final answer
    x = 7,399.34

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.