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Finding the Third Proportional to 5,160 and 7,314

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Solution

The third proportional to 5,160 and 7,314 is: 10,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160 : 7,314 = 7,314 : x
  2. Step 2: Convert to fraction form
    5,160/7,314 = 7,314/x
  3. Step 3: Cross multiply
    5,160x = 7,314 × 7,314
  4. Step 4: Simplify right side
    5,160x = 53,494,596
  5. Step 5: Solve for x
    x = 53,494,596/5,160
  6. Step 6: Final answer
    x = 10,367.17

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.