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Finding the Third Proportional to 5,388 and 6,360

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Solution

The third proportional to 5,388 and 6,360 is: 7,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388 : 6,360 = 6,360 : x
  2. Step 2: Convert to fraction form
    5,388/6,360 = 6,360/x
  3. Step 3: Cross multiply
    5,388x = 6,360 × 6,360
  4. Step 4: Simplify right side
    5,388x = 40,449,600
  5. Step 5: Solve for x
    x = 40,449,600/5,388
  6. Step 6: Final answer
    x = 7,507.35

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.