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Finding the Third Proportional to 3,687 and 5,266.50

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Solution

The third proportional to 3,687 and 5,266.50 is: 7,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687 : 5,266.50 = 5,266.50 : x
  2. Step 2: Convert to fraction form
    3,687/5,266.50 = 5,266.50/x
  3. Step 3: Cross multiply
    3,687x = 5,266.50 × 5,266.50
  4. Step 4: Simplify right side
    3,687x = 27,736,022.25
  5. Step 5: Solve for x
    x = 27,736,022.25/3,687
  6. Step 6: Final answer
    x = 7,522.65

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.