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Finding the Third Proportional to 3,180 and 4,153.50

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Solution

The third proportional to 3,180 and 4,153.50 is: 5,425.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180 : 4,153.50 = 4,153.50 : x
  2. Step 2: Convert to fraction form
    3,180/4,153.50 = 4,153.50/x
  3. Step 3: Cross multiply
    3,180x = 4,153.50 × 4,153.50
  4. Step 4: Simplify right side
    3,180x = 17,251,562.25
  5. Step 5: Solve for x
    x = 17,251,562.25/3,180
  6. Step 6: Final answer
    x = 5,425.02

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.