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Finding the Third Proportional to 1,163 and 2,440

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Solution

The third proportional to 1,163 and 2,440 is: 5,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163 : 2,440 = 2,440 : x
  2. Step 2: Convert to fraction form
    1,163/2,440 = 2,440/x
  3. Step 3: Cross multiply
    1,163x = 2,440 × 2,440
  4. Step 4: Simplify right side
    1,163x = 5,953,600
  5. Step 5: Solve for x
    x = 5,953,600/1,163
  6. Step 6: Final answer
    x = 5,119.17

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.