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Finding the Third Proportional to 1,316 and 3,272

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Solution

The third proportional to 1,316 and 3,272 is: 8,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316 : 3,272 = 3,272 : x
  2. Step 2: Convert to fraction form
    1,316/3,272 = 3,272/x
  3. Step 3: Cross multiply
    1,316x = 3,272 × 3,272
  4. Step 4: Simplify right side
    1,316x = 10,705,984
  5. Step 5: Solve for x
    x = 10,705,984/1,316
  6. Step 6: Final answer
    x = 8,135.25

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.