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Finding the Third Proportional to 1,160 and 2,425

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Solution

The third proportional to 1,160 and 2,425 is: 5,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160 : 2,425 = 2,425 : x
  2. Step 2: Convert to fraction form
    1,160/2,425 = 2,425/x
  3. Step 3: Cross multiply
    1,160x = 2,425 × 2,425
  4. Step 4: Simplify right side
    1,160x = 5,880,625
  5. Step 5: Solve for x
    x = 5,880,625/1,160
  6. Step 6: Final answer
    x = 5,069.50

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.