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Finding the Third Proportional to 3,554 and 5,320

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Solution

The third proportional to 3,554 and 5,320 is: 7,963.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554 : 5,320 = 5,320 : x
  2. Step 2: Convert to fraction form
    3,554/5,320 = 5,320/x
  3. Step 3: Cross multiply
    3,554x = 5,320 × 5,320
  4. Step 4: Simplify right side
    3,554x = 28,302,400
  5. Step 5: Solve for x
    x = 28,302,400/3,554
  6. Step 6: Final answer
    x = 7,963.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.