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Finding the Third Proportional to 3,532 and 5,518

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Solution

The third proportional to 3,532 and 5,518 is: 8,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,532 : 5,518 = 5,518 : x
  2. Step 2: Convert to fraction form
    3,532/5,518 = 5,518/x
  3. Step 3: Cross multiply
    3,532x = 5,518 × 5,518
  4. Step 4: Simplify right side
    3,532x = 30,448,324
  5. Step 5: Solve for x
    x = 30,448,324/3,532
  6. Step 6: Final answer
    x = 8,620.70

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.