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Finding the Third Proportional to 5,418 and 7,359

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Solution

The third proportional to 5,418 and 7,359 is: 9,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418 : 7,359 = 7,359 : x
  2. Step 2: Convert to fraction form
    5,418/7,359 = 7,359/x
  3. Step 3: Cross multiply
    5,418x = 7,359 × 7,359
  4. Step 4: Simplify right side
    5,418x = 54,154,881
  5. Step 5: Solve for x
    x = 54,154,881/5,418
  6. Step 6: Final answer
    x = 9,995.36

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.