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Finding the Third Proportional to 5,480 and 8,503

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Solution

The third proportional to 5,480 and 8,503 is: 13,193.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480 : 8,503 = 8,503 : x
  2. Step 2: Convert to fraction form
    5,480/8,503 = 8,503/x
  3. Step 3: Cross multiply
    5,480x = 8,503 × 8,503
  4. Step 4: Simplify right side
    5,480x = 72,301,009
  5. Step 5: Solve for x
    x = 72,301,009/5,480
  6. Step 6: Final answer
    x = 13,193.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.