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Finding the Third Proportional to 5,328 and 7,260

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Solution

The third proportional to 5,328 and 7,260 is: 9,892.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328 : 7,260 = 7,260 : x
  2. Step 2: Convert to fraction form
    5,328/7,260 = 7,260/x
  3. Step 3: Cross multiply
    5,328x = 7,260 × 7,260
  4. Step 4: Simplify right side
    5,328x = 52,707,600
  5. Step 5: Solve for x
    x = 52,707,600/5,328
  6. Step 6: Final answer
    x = 9,892.57

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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.