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Finding the Third Proportional to 5,423 and 6,359

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Solution

The third proportional to 5,423 and 6,359 is: 7,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423 : 6,359 = 6,359 : x
  2. Step 2: Convert to fraction form
    5,423/6,359 = 6,359/x
  3. Step 3: Cross multiply
    5,423x = 6,359 × 6,359
  4. Step 4: Simplify right side
    5,423x = 40,436,881
  5. Step 5: Solve for x
    x = 40,436,881/5,423
  6. Step 6: Final answer
    x = 7,456.55

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.